[PATCH] isdn4linux: Siemens Gigaset drivers: logging usage

With Hansjoerg Lipp <hjlipp@web.de>

Improve error reporting of the Gigaset drivers, by using the
dev_err/dev_warn/dev_info macros from device.h instead of err/warn/info from
usb.h whereever possible.

Also rename the private dbg macro to gig_dbg in order to avoid confusion with
the macro of the same name in usb.h.

Signed-off-by: Hansjoerg Lipp <hjlipp@web.de>
Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Cc: Karsten Keil <kkeil@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

drivers/isdn/gigaset/asyncdata.c

@@ -51,7 +51,7 @@ static inline int cmd_loop(unsigned char c, unsigned char *src, int numbytes,
 	for (;;) {
 		cs->respdata[cbytes] = c;
 		if (c == 10 || c == 13) {
-			dbg(DEBUG_TRANSCMD, "%s: End of Command (%d Bytes)",
+			gig_dbg(DEBUG_TRANSCMD, "%s: End of Command (%d Bytes)",
 				__func__, cbytes);
 			cs->cbytes = cbytes;
 			gigaset_handle_modem_response(cs); /* can change
@@ -68,7 +68,7 @@ static inline int cmd_loop(unsigned char c, unsigned char *src, int numbytes,
 			if (cbytes < MAX_RESP_SIZE - 1)
 				cbytes++;
 			else
-				warn("response too large");
+				dev_warn(cs->dev, "response too large\n");
 		}
 
 		if (!numbytes)
@@ -154,39 +154,37 @@ byte_stuff:
 			c ^= PPP_TRANS;
 #ifdef CONFIG_GIGASET_DEBUG
 			if (unlikely(!muststuff(c)))
-				dbg(DEBUG_HDLC,
+				gig_dbg(DEBUG_HDLC, "byte stuffed: 0x%02x", c);
-				    "byte stuffed: 0x%02x", c);
 #endif
 		} else if (unlikely(c == PPP_FLAG)) {
 			if (unlikely(inputstate & INS_skip_frame)) {
 				if (!(inputstate & INS_have_data)) { /* 7E 7E */
-					//dbg(DEBUG_HDLC, "(7e)7e------------------------");
 #ifdef CONFIG_GIGASET_DEBUG
 					++bcs->emptycount;
 #endif
 				} else
-					dbg(DEBUG_HDLC,
+					gig_dbg(DEBUG_HDLC,
 					    "7e----------------------------");
 
 				/* end of frame */
 				error = 1;
 				gigaset_rcv_error(NULL, cs, bcs);
 			} else if (!(inputstate & INS_have_data)) { /* 7E 7E */
-				//dbg(DEBUG_HDLC, "(7e)7e------------------------");
 #ifdef CONFIG_GIGASET_DEBUG
 				++bcs->emptycount;
 #endif
 				break;
 			} else {
-				dbg(DEBUG_HDLC,
+				gig_dbg(DEBUG_HDLC,
 					"7e----------------------------");
 
 				/* end of frame */
 				error = 0;
 
 				if (unlikely(fcs != PPP_GOODFCS)) {
-					err("Packet checksum at %lu failed, "
+					dev_err(cs->dev,
-					    "packet is corrupted (%u bytes)!",
+					    "Packet checksum at %lu failed, "
+					    "packet is corrupted (%u bytes)!\n",
 					    bcs->rcvbytes, skb->len);
 					compskb = NULL;
 					gigaset_rcv_error(compskb, cs, bcs);
@@ -200,9 +198,11 @@ byte_stuff:
 						skb = NULL;
 						inputstate |= INS_skip_frame;
 						if (l == 1) {
-							err("invalid packet size (1)!");
+							dev_err(cs->dev,
+						  "invalid packet size (1)!\n");
 							error = 1;
-							gigaset_rcv_error(NULL, cs, bcs);
+							gigaset_rcv_error(NULL,
+								cs, bcs);
 						}
 					}
 					if (likely(!(error ||
@@ -225,7 +225,8 @@ byte_stuff:
 			} else if (likely((skb = dev_alloc_skb(SBUFSIZE + HW_HDR_LEN)) != NULL)) {
 				skb_reserve(skb, HW_HDR_LEN);
 			} else {
-				warn("could not allocate new skb");
+				dev_warn(cs->dev,
+					 "could not allocate new skb\n");
 				inputstate |= INS_skip_frame;
 			}
 
@@ -233,7 +234,7 @@ byte_stuff:
 #ifdef CONFIG_GIGASET_DEBUG
 		} else if (unlikely(muststuff(c))) {
 			/* Should not happen. Possible after ZDLE=1<CR><LF>. */
-			dbg(DEBUG_HDLC, "not byte stuffed: 0x%02x", c);
+			gig_dbg(DEBUG_HDLC, "not byte stuffed: 0x%02x", c);
 #endif
 		}
 
@@ -241,8 +242,8 @@ byte_stuff:
 
 #ifdef CONFIG_GIGASET_DEBUG
 		if (unlikely(!(inputstate & INS_have_data))) {
-			dbg(DEBUG_HDLC,
+			gig_dbg(DEBUG_HDLC, "7e (%d x) ================",
-			    "7e (%d x) ================", bcs->emptycount);
+				bcs->emptycount);
 			bcs->emptycount = 0;
 		}
 #endif
@@ -251,7 +252,7 @@ byte_stuff:
 
 		if (likely(!(inputstate & INS_skip_frame))) {
 			if (unlikely(skb->len == SBUFSIZE)) {
-				warn("received packet too long");
+				dev_warn(cs->dev, "received packet too long\n");
 				dev_kfree_skb_any(skb);
 				skb = NULL;
 				inputstate |= INS_skip_frame;
@@ -307,7 +308,7 @@ static inline int iraw_loop(unsigned char c, unsigned char *src, int numbytes,
 		if (likely(!(inputstate & INS_skip_frame))) {
 			if (unlikely(skb->len == SBUFSIZE)) {
 				//FIXME just pass skb up and allocate a new one
-				warn("received packet too long");
+				dev_warn(cs->dev, "received packet too long\n");
 				dev_kfree_skb_any(skb);
 				skb = NULL;
 				inputstate |= INS_skip_frame;
@@ -341,7 +342,7 @@ static inline int iraw_loop(unsigned char c, unsigned char *src, int numbytes,
 				  != NULL)) {
 			skb_reserve(skb, HW_HDR_LEN);
 		} else {
-			warn("could not allocate new skb");
+			dev_warn(cs->dev, "could not allocate new skb\n");
 			inputstate |= INS_skip_frame;
 		}
 	}
@@ -362,13 +363,13 @@ void gigaset_m10x_input(struct inbuf_t *inbuf)
 
 	head = atomic_read(&inbuf->head);
 	tail = atomic_read(&inbuf->tail);
-	dbg(DEBUG_INTR, "buffer state: %u -> %u", head, tail);
+	gig_dbg(DEBUG_INTR, "buffer state: %u -> %u", head, tail);
 
 	if (head != tail) {
 		cs = inbuf->cs;
 		src = inbuf->data + head;
 		numbytes = (head > tail ? RBUFSIZE : tail) - head;
-		dbg(DEBUG_INTR, "processing %u bytes", numbytes);
+		gig_dbg(DEBUG_INTR, "processing %u bytes", numbytes);
 
 		while (numbytes) {
 			if (atomic_read(&cs->mstate) == MS_LOCKED) {
@@ -400,13 +401,14 @@ void gigaset_m10x_input(struct inbuf_t *inbuf)
 
 					src += procbytes;
 					numbytes -= procbytes;
-				} else {  /* DLE-char */
+				} else {  /* DLE char */
 					inbuf->inputstate &= ~INS_DLE_char;
 					switch (c) {
 					case 'X': /*begin of command*/
 #ifdef CONFIG_GIGASET_DEBUG
 						if (inbuf->inputstate & INS_command)
-							err("received <DLE> 'X' in command mode");
+							dev_err(cs->dev,
+					"received <DLE> 'X' in command mode\n");
 #endif
 						inbuf->inputstate |=
 							INS_command | INS_DLE_command;
@@ -414,7 +416,8 @@ void gigaset_m10x_input(struct inbuf_t *inbuf)
 					case '.': /*end of command*/
 #ifdef CONFIG_GIGASET_DEBUG
 						if (!(inbuf->inputstate & INS_command))
-							err("received <DLE> '.' in hdlc mode");
+							dev_err(cs->dev,
+					"received <DLE> '.' in hdlc mode\n");
 #endif
 						inbuf->inputstate &= cs->dle ?
 							~(INS_DLE_command|INS_command)
@@ -422,7 +425,9 @@ void gigaset_m10x_input(struct inbuf_t *inbuf)
 						break;
 					//case DLE_FLAG: /*DLE_FLAG in data stream*/ /* schon oben behandelt! */
 					default:
-						err("received 0x10 0x%02x!", (int) c);
+						dev_err(cs->dev,
+						      "received 0x10 0x%02x!\n",
+							(int) c);
 						/* FIXME: reset driver?? */
 					}
 				}
@@ -441,7 +446,7 @@ nextbyte:
 			}
 		}
 
-		dbg(DEBUG_INTR, "setting head to %u", head);
+		gig_dbg(DEBUG_INTR, "setting head to %u", head);
 		atomic_set(&inbuf->head, head);
 	}
 }
@@ -483,7 +488,6 @@ static struct sk_buff *HDLC_Encode(struct sk_buff *skb, int head, int tail)
 	 */
 	hdlc_skb = dev_alloc_skb(skb->len + stuf_cnt + 6 + tail + head);
 	if (!hdlc_skb) {
-		err("unable to allocate memory for HDLC encoding!");
 		dev_kfree_skb(skb);
 		return NULL;
 	}
@@ -543,7 +547,6 @@ static struct sk_buff *iraw_encode(struct sk_buff *skb, int head, int tail)
 	/* worst case: every byte must be stuffed */
 	iraw_skb = dev_alloc_skb(2*skb->len + tail + head);
 	if (!iraw_skb) {
-		err("unable to allocate memory for HDLC encoding!");
 		dev_kfree_skb(skb);
 		return NULL;
 	}
@@ -584,8 +587,11 @@ int gigaset_m10x_send_skb(struct bc_state *bcs, struct sk_buff *skb)
 		skb = HDLC_Encode(skb, HW_HDR_LEN, 0);
 	else
 		skb = iraw_encode(skb, HW_HDR_LEN, 0);
-	if (!skb)
+	if (!skb) {
+		dev_err(bcs->cs->dev,
+			"unable to allocate memory for encoding!\n");
 		return -ENOMEM;
+	}
 
 	skb_queue_tail(&bcs->squeue, skb);
 	tasklet_schedule(&bcs->cs->write_tasklet);

drivers/isdn/gigaset/common.c

@@ -32,9 +32,6 @@ MODULE_PARM_DESC(debug, "debug level");
   Prototypes of internal functions
  */
 
-//static void gigaset_process_response(int resp_code, int parameter,
-//                                     struct at_state_t *at_state,
-//                                     unsigned char ** pstring);
 static struct cardstate *alloc_cs(struct gigaset_driver *drv);
 static void free_cs(struct cardstate *cs);
 static void make_valid(struct cardstate *cs, unsigned mask);
@@ -86,6 +83,7 @@ void gigaset_dbg_buffer(enum debuglevel level, const unsigned char *msg,
 {
 	unsigned char outbuf[80];
 	unsigned char inbuf[80 - 1];
+	unsigned char c;
 	size_t numin;
 	const unsigned char *in;
 	size_t space = sizeof outbuf - 1;
@@ -99,26 +97,38 @@ void gigaset_dbg_buffer(enum debuglevel level, const unsigned char *msg,
 		in = inbuf;
 		if (copy_from_user(inbuf, (const unsigned char __user *) buf,
 				   numin)) {
-			strncpy(inbuf, "<FAULT>", sizeof inbuf);
+			gig_dbg(level, "%s (%u bytes) - copy_from_user failed",
-			numin = sizeof "<FAULT>" - 1;
+				msg, (unsigned) len);
+			return;
 		}
 	}
 
-	for (; numin && space; --numin, ++in) {
+	while (numin-- > 0) {
-		--space;
+		c = *buf++;
-		if (*in >= 32)
+		if (c == '~' || c == '^' || c == '\\') {
-			*out++ = *in;
+			if (space-- <= 0)
-		else {
+				break;
+			*out++ = '\\';
+		}
+		if (c & 0x80) {
+			if (space-- <= 0)
+				break;
+			*out++ = '~';
+			c ^= 0x80;
+		}
+		if (c < 0x20 || c == 0x7f) {
+			if (space-- <= 0)
+				break;
 			*out++ = '^';
-			if (space) {
+			c ^= 0x40;
-				*out++ = '@' + *in;
-				--space;
-			}
 		}
+		if (space-- <= 0)
+			break;
+		*out++ = c;
 	}
 	*out = 0;
 
-	dbg(level, "%s (%u bytes): %s", msg, (unsigned) len, outbuf);
+	gig_dbg(level, "%s (%u bytes): %s", msg, (unsigned) len, outbuf);
 }
 EXPORT_SYMBOL_GPL(gigaset_dbg_buffer);
 
@@ -171,7 +181,7 @@ int gigaset_enterconfigmode(struct cardstate *cs)
 	return 0;
 
 error:
-	err("error %d on setuartbits!\n", -r);
+	dev_err(cs->dev, "error %d on setuartbits\n", -r);
 	cs->control_state = TIOCM_RTS|TIOCM_DTR; // FIXME is this a good value?
 	cs->ops->set_modem_ctrl(cs, 0, TIOCM_RTS|TIOCM_DTR);
 
@@ -184,7 +194,7 @@ static int test_timeout(struct at_state_t *at_state)
 		return 0;
 
 	if (--at_state->timer_expires) {
-		dbg(DEBUG_MCMD, "decreased timer of %p to %lu",
+		gig_dbg(DEBUG_MCMD, "decreased timer of %p to %lu",
 			at_state, at_state->timer_expires);
 		return 0;
 	}
@@ -221,7 +231,7 @@ static void timer_tick(unsigned long data)
 	if (atomic_read(&cs->running)) {
 		mod_timer(&cs->timer, jiffies + msecs_to_jiffies(GIG_TICK));
 		if (timeout) {
-			dbg(DEBUG_CMD, "scheduling timeout");
+			gig_dbg(DEBUG_CMD, "scheduling timeout");
 			tasklet_schedule(&cs->event_tasklet);
 		}
 	}
@@ -235,13 +245,14 @@ int gigaset_get_channel(struct bc_state *bcs)
 
 	spin_lock_irqsave(&bcs->cs->lock, flags);
 	if (bcs->use_count) {
-		dbg(DEBUG_ANY, "could not allocate channel %d", bcs->channel);
+		gig_dbg(DEBUG_ANY, "could not allocate channel %d",
+			bcs->channel);
 		spin_unlock_irqrestore(&bcs->cs->lock, flags);
 		return 0;
 	}
 	++bcs->use_count;
 	bcs->busy = 1;
-	dbg(DEBUG_ANY, "allocated channel %d", bcs->channel);
+	gig_dbg(DEBUG_ANY, "allocated channel %d", bcs->channel);
 	spin_unlock_irqrestore(&bcs->cs->lock, flags);
 	return 1;
 }
@@ -252,13 +263,13 @@ void gigaset_free_channel(struct bc_state *bcs)
 
 	spin_lock_irqsave(&bcs->cs->lock, flags);
 	if (!bcs->busy) {
-		dbg(DEBUG_ANY, "could not free channel %d", bcs->channel);
+		gig_dbg(DEBUG_ANY, "could not free channel %d", bcs->channel);
 		spin_unlock_irqrestore(&bcs->cs->lock, flags);
 		return;
 	}
 	--bcs->use_count;
 	bcs->busy = 0;
-	dbg(DEBUG_ANY, "freed channel %d", bcs->channel);
+	gig_dbg(DEBUG_ANY, "freed channel %d", bcs->channel);
 	spin_unlock_irqrestore(&bcs->cs->lock, flags);
 }
 
@@ -271,14 +282,14 @@ int gigaset_get_channels(struct cardstate *cs)
 	for (i = 0; i < cs->channels; ++i)
 		if (cs->bcs[i].use_count) {
 			spin_unlock_irqrestore(&cs->lock, flags);
-			dbg(DEBUG_ANY, "could not allocated all channels");
+			gig_dbg(DEBUG_ANY, "could not allocate all channels");
 			return 0;
 		}
 	for (i = 0; i < cs->channels; ++i)
 		++cs->bcs[i].use_count;
 	spin_unlock_irqrestore(&cs->lock, flags);
 
-	dbg(DEBUG_ANY, "allocated all channels");
+	gig_dbg(DEBUG_ANY, "allocated all channels");
 
 	return 1;
 }
@@ -288,7 +299,7 @@ void gigaset_free_channels(struct cardstate *cs)
 	unsigned long flags;
 	int i;
 
-	dbg(DEBUG_ANY, "unblocking all channels");
+	gig_dbg(DEBUG_ANY, "unblocking all channels");
 	spin_lock_irqsave(&cs->lock, flags);
 	for (i = 0; i < cs->channels; ++i)
 		--cs->bcs[i].use_count;
@@ -300,7 +311,7 @@ void gigaset_block_channels(struct cardstate *cs)
 	unsigned long flags;
 	int i;
 
-	dbg(DEBUG_ANY, "blocking all channels");
+	gig_dbg(DEBUG_ANY, "blocking all channels");
 	spin_lock_irqsave(&cs->lock, flags);
 	for (i = 0; i < cs->channels; ++i)
 		++cs->bcs[i].use_count;
@@ -388,14 +399,14 @@ static void gigaset_freebcs(struct bc_state *bcs)
 {
 	int i;
 
-	dbg(DEBUG_INIT, "freeing bcs[%d]->hw", bcs->channel);
+	gig_dbg(DEBUG_INIT, "freeing bcs[%d]->hw", bcs->channel);
 	if (!bcs->cs->ops->freebcshw(bcs)) {
-		dbg(DEBUG_INIT, "failed");
+		gig_dbg(DEBUG_INIT, "failed");
 	}
 
-	dbg(DEBUG_INIT, "clearing bcs[%d]->at_state", bcs->channel);
+	gig_dbg(DEBUG_INIT, "clearing bcs[%d]->at_state", bcs->channel);
 	clear_at_state(&bcs->at_state);
-	dbg(DEBUG_INIT, "freeing bcs[%d]->skb", bcs->channel);
+	gig_dbg(DEBUG_INIT, "freeing bcs[%d]->skb", bcs->channel);
 
 	if (bcs->skb)
 		dev_kfree_skb(bcs->skb);
@@ -432,7 +443,7 @@ void gigaset_freecs(struct cardstate *cs)
 	default:
 		gigaset_if_free(cs);
 
-		dbg(DEBUG_INIT, "clearing hw");
+		gig_dbg(DEBUG_INIT, "clearing hw");
 		cs->ops->freecshw(cs);
 
 		//FIXME cmdbuf
@@ -441,29 +452,29 @@ void gigaset_freecs(struct cardstate *cs)
 	case 2: /* error in initcshw */
 		/* Deregister from LL */
 		make_invalid(cs, VALID_ID);
-		dbg(DEBUG_INIT, "clearing iif");
+		gig_dbg(DEBUG_INIT, "clearing iif");
 		gigaset_i4l_cmd(cs, ISDN_STAT_UNLOAD);
 
 		/* fall through */
 	case 1: /* error when regestering to LL */
-		dbg(DEBUG_INIT, "clearing at_state");
+		gig_dbg(DEBUG_INIT, "clearing at_state");
 		clear_at_state(&cs->at_state);
 		dealloc_at_states(cs);
 
 		/* fall through */
 	case 0: /* error in one call to initbcs */
 		for (i = 0; i < cs->channels; ++i) {
-			dbg(DEBUG_INIT, "clearing bcs[%d]", i);
+			gig_dbg(DEBUG_INIT, "clearing bcs[%d]", i);
 			gigaset_freebcs(cs->bcs + i);
 		}
 
 		clear_events(cs);
-		dbg(DEBUG_INIT, "freeing inbuf");
+		gig_dbg(DEBUG_INIT, "freeing inbuf");
 		kfree(cs->inbuf);
 	}
-f_bcs:	dbg(DEBUG_INIT, "freeing bcs[]");
+f_bcs:	gig_dbg(DEBUG_INIT, "freeing bcs[]");
 	kfree(cs->bcs);
-f_cs:	dbg(DEBUG_INIT, "freeing cs");
+f_cs:	gig_dbg(DEBUG_INIT, "freeing cs");
 	up(&cs->sem);
 	free_cs(cs);
 }
@@ -524,7 +535,7 @@ static struct bc_state *gigaset_initbcs(struct bc_state *bcs,
 	bcs->trans_down = 0;
 	bcs->trans_up = 0;
 
-	dbg(DEBUG_INIT, "setting up bcs[%d]->at_state", channel);
+	gig_dbg(DEBUG_INIT, "setting up bcs[%d]->at_state", channel);
 	gigaset_at_init(&bcs->at_state, bcs, cs, -1);
 
 	bcs->rcvbytes = 0;
@@ -533,7 +544,7 @@ static struct bc_state *gigaset_initbcs(struct bc_state *bcs,
 	bcs->emptycount = 0;
 #endif
 
-	dbg(DEBUG_INIT, "allocating bcs[%d]->skb", channel);
+	gig_dbg(DEBUG_INIT, "allocating bcs[%d]->skb", channel);
 	bcs->fcs = PPP_INITFCS;
 	bcs->inputstate = 0;
 	if (cs->ignoreframes) {
@@ -542,7 +553,7 @@ static struct bc_state *gigaset_initbcs(struct bc_state *bcs,
 	} else if ((bcs->skb = dev_alloc_skb(SBUFSIZE + HW_HDR_LEN)) != NULL)
 		skb_reserve(bcs->skb, HW_HDR_LEN);
 	else {
-		warn("could not allocate skb");
+		dev_warn(cs->dev, "could not allocate skb\n");
 		bcs->inputstate |= INS_skip_frame;
 	}
 
@@ -557,13 +568,13 @@ static struct bc_state *gigaset_initbcs(struct bc_state *bcs,
 	for (i = 0; i < AT_NUM; ++i)
 		bcs->commands[i] = NULL;
 
-	dbg(DEBUG_INIT, "  setting up bcs[%d]->hw", channel);
+	gig_dbg(DEBUG_INIT, "  setting up bcs[%d]->hw", channel);
 	if (cs->ops->initbcshw(bcs))
 		return bcs;
 
-	dbg(DEBUG_INIT, "  failed");
+	gig_dbg(DEBUG_INIT, "  failed");
 
-	dbg(DEBUG_INIT, "  freeing bcs[%d]->skb", channel);
+	gig_dbg(DEBUG_INIT, "  freeing bcs[%d]->skb", channel);
 	if (bcs->skb)
 		dev_kfree_skb(bcs->skb);
 
@@ -593,15 +604,15 @@ struct cardstate *gigaset_initcs(struct gigaset_driver *drv, int channels,
 	struct cardstate *cs = NULL;
 	int i;
 
-	dbg(DEBUG_INIT, "allocating cs");
+	gig_dbg(DEBUG_INIT, "allocating cs");
 	cs = alloc_cs(drv);
 	if (!cs)
 		goto error;
-	dbg(DEBUG_INIT, "allocating bcs[0..%d]", channels - 1);
+	gig_dbg(DEBUG_INIT, "allocating bcs[0..%d]", channels - 1);
 	cs->bcs = kmalloc(channels * sizeof(struct bc_state), GFP_KERNEL);
 	if (!cs->bcs)
 		goto error;
-	dbg(DEBUG_INIT, "allocating inbuf");
+	gig_dbg(DEBUG_INIT, "allocating inbuf");
 	cs->inbuf = kmalloc(sizeof(struct inbuf_t), GFP_KERNEL);
 	if (!cs->inbuf)
 		goto error;
@@ -623,6 +634,7 @@ struct cardstate *gigaset_initcs(struct gigaset_driver *drv, int channels,
 	cs->cur_at_seq = 0;
 	cs->gotfwver = -1;
 	cs->open_count = 0;
+	cs->dev = NULL;
 	cs->tty = NULL;
 	atomic_set(&cs->cidmode, cidmode != 0);
 
@@ -641,20 +653,20 @@ struct cardstate *gigaset_initcs(struct gigaset_driver *drv, int channels,
 	atomic_set(&cs->mstate, MS_UNINITIALIZED);
 
 	for (i = 0; i < channels; ++i) {
-		dbg(DEBUG_INIT, "setting up bcs[%d].read", i);
+		gig_dbg(DEBUG_INIT, "setting up bcs[%d].read", i);
 		if (!gigaset_initbcs(cs->bcs + i, cs, i))
 			goto error;
 	}
 
 	++cs->cs_init;
 
-	dbg(DEBUG_INIT, "setting up at_state");
+	gig_dbg(DEBUG_INIT, "setting up at_state");
 	spin_lock_init(&cs->lock);
 	gigaset_at_init(&cs->at_state, NULL, cs, 0);
 	cs->dle = 0;
 	cs->cbytes = 0;
 
-	dbg(DEBUG_INIT, "setting up inbuf");
+	gig_dbg(DEBUG_INIT, "setting up inbuf");
 	if (onechannel) {			//FIXME distinction necessary?
 		gigaset_inbuf_init(cs->inbuf, cs->bcs, cs, INS_command);
 	} else
@@ -662,21 +674,21 @@ struct cardstate *gigaset_initcs(struct gigaset_driver *drv, int channels,
 
 	atomic_set(&cs->connected, 0);
 
-	dbg(DEBUG_INIT, "setting up cmdbuf");
+	gig_dbg(DEBUG_INIT, "setting up cmdbuf");
 	cs->cmdbuf = cs->lastcmdbuf = NULL;
 	spin_lock_init(&cs->cmdlock);
 	cs->curlen = 0;
 	cs->cmdbytes = 0;
 
-	dbg(DEBUG_INIT, "setting up iif");
+	gig_dbg(DEBUG_INIT, "setting up iif");
 	if (!gigaset_register_to_LL(cs, modulename)) {
-		err("register_isdn=>error");
+		err("register_isdn failed");
 		goto error;
 	}
 
 	make_valid(cs, VALID_ID);
 	++cs->cs_init;
-	dbg(DEBUG_INIT, "setting up hw");
+	gig_dbg(DEBUG_INIT, "setting up hw");
 	if (!cs->ops->initcshw(cs))
 		goto error;
 
@@ -691,13 +703,13 @@ struct cardstate *gigaset_initcs(struct gigaset_driver *drv, int channels,
 	 * Same problem(?) with mod_timer() in timer_tick(). */
 	add_timer(&cs->timer);
 
-	dbg(DEBUG_INIT, "cs initialized!");
+	gig_dbg(DEBUG_INIT, "cs initialized");
 	up(&cs->sem);
 	return cs;
 
 error:	if (cs)
 		up(&cs->sem);
-	dbg(DEBUG_INIT, "failed");
+	gig_dbg(DEBUG_INIT, "failed");
 	gigaset_freecs(cs);
 	return NULL;
 }
@@ -816,7 +828,7 @@ int gigaset_start(struct cardstate *cs)
 		goto error;
 	}
 
-	dbg(DEBUG_CMD, "scheduling START");
+	gig_dbg(DEBUG_CMD, "scheduling START");
 	gigaset_schedule_event(cs);
 
 	wait_event(cs->waitqueue, !cs->waiting);
@@ -841,11 +853,11 @@ void gigaset_shutdown(struct cardstate *cs)
 		goto exit;
 	}
 
-	dbg(DEBUG_CMD, "scheduling SHUTDOWN");
+	gig_dbg(DEBUG_CMD, "scheduling SHUTDOWN");
 	gigaset_schedule_event(cs);
 
 	if (wait_event_interruptible(cs->waitqueue, !cs->waiting)) {
-		warn("aborted");
+		warn("%s: aborted", __func__);
 		//FIXME
 	}
 
@@ -879,11 +891,11 @@ void gigaset_stop(struct cardstate *cs)
 		goto exit;
 	}
 
-	dbg(DEBUG_CMD, "scheduling STOP");
+	gig_dbg(DEBUG_CMD, "scheduling STOP");
 	gigaset_schedule_event(cs);
 
 	if (wait_event_interruptible(cs->waitqueue, !cs->waiting)) {
-		warn("aborted");
+		warn("%s: aborted", __func__);
 		//FIXME
 	}
 
@@ -937,17 +949,18 @@ void gigaset_debugdrivers(void)
 
 	spin_lock_irqsave(&driver_lock, flags);
 	list_for_each_entry(drv, &drivers, list) {
-		dbg(DEBUG_DRIVER, "driver %p", drv);
+		gig_dbg(DEBUG_DRIVER, "driver %p", drv);
 		spin_lock(&drv->lock);
 		for (i = 0; i < drv->minors; ++i) {
-			dbg(DEBUG_DRIVER, "  index %u", i);
+			gig_dbg(DEBUG_DRIVER, "  index %u", i);
-			dbg(DEBUG_DRIVER, "    flags 0x%02x", drv->flags[i]);
+			gig_dbg(DEBUG_DRIVER, "    flags 0x%02x",
+				drv->flags[i]);
 			cs = drv->cs + i;
-			dbg(DEBUG_DRIVER, "    cardstate %p", cs);
+			gig_dbg(DEBUG_DRIVER, "    cardstate %p", cs);
-			dbg(DEBUG_DRIVER, "    minor_index %u",
+			gig_dbg(DEBUG_DRIVER, "    minor_index %u",
 				cs->minor_index);
-			dbg(DEBUG_DRIVER, "    driver %p", cs->driver);
+			gig_dbg(DEBUG_DRIVER, "    driver %p", cs->driver);
-			dbg(DEBUG_DRIVER, "    i4l id %d", cs->myid);
+			gig_dbg(DEBUG_DRIVER, "    i4l id %d", cs->myid);
 		}
 		spin_unlock(&drv->lock);
 	}

drivers/isdn/gigaset/ev-layer.c

@@ -444,7 +444,7 @@ static int isdn_getnum(char *p)
 
 	IFNULLRETVAL(p, -1);
 
-	dbg(DEBUG_TRANSCMD, "string: %s", p);
+	gig_dbg(DEBUG_TRANSCMD, "string: %s", p);
 
 	while (*p >= '0' && *p <= '9')
 		v = ((v < 0) ? 0 : (v * 10)) + (int) ((*p++) - '0');
@@ -463,7 +463,7 @@ static int isdn_gethex(char *p)
 
 	IFNULLRETVAL(p, -1);
 
-	dbg(DEBUG_TRANSCMD, "string: %s", p);
+	gig_dbg(DEBUG_TRANSCMD, "string: %s", p);
 
 	if (!*p)
 		return -1;
@@ -537,11 +537,11 @@ void gigaset_handle_modem_response(struct cardstate *cs)
 	len = cs->cbytes;
 	if (!len) {
 		/* ignore additional LFs/CRs (M10x config mode or cx100) */
-		dbg(DEBUG_MCMD, "skipped EOL [%02X]", cs->respdata[len]);
+		gig_dbg(DEBUG_MCMD, "skipped EOL [%02X]", cs->respdata[len]);
 		return;
 	}
 	cs->respdata[len] = 0;
-	dbg(DEBUG_TRANSCMD, "raw string: '%s'", cs->respdata);
+	gig_dbg(DEBUG_TRANSCMD, "raw string: '%s'", cs->respdata);
 	argv[0] = cs->respdata;
 	params = 1;
 	if (cs->at_state.getstring) {
@@ -557,7 +557,8 @@ void gigaset_handle_modem_response(struct cardstate *cs)
 			case ',':
 			case '=':
 				if (params > MAX_REC_PARAMS) {
-					warn("too many parameters in response");
+					dev_warn(cs->dev,
+					   "too many parameters in response\n");
 					/* need last parameter (might be CID) */
 					params--;
 				}
@@ -575,14 +576,14 @@ void gigaset_handle_modem_response(struct cardstate *cs)
 		for (j = 1; j < params; ++j)
 			argv[j][-1] = 0;
 
-		dbg(DEBUG_TRANSCMD, "CMD received: %s", argv[0]);
+		gig_dbg(DEBUG_TRANSCMD, "CMD received: %s", argv[0]);
 		if (cid) {
 			--params;
-			dbg(DEBUG_TRANSCMD, "CID: %s", argv[params]);
+			gig_dbg(DEBUG_TRANSCMD, "CID: %s", argv[params]);
 		}
-		dbg(DEBUG_TRANSCMD, "available params: %d", params - 1);
+		gig_dbg(DEBUG_TRANSCMD, "available params: %d", params - 1);
 		for (j = 1; j < params; j++)
-			dbg(DEBUG_TRANSCMD, "param %d: %s", j, argv[j]);
+			gig_dbg(DEBUG_TRANSCMD, "param %d: %s", j, argv[j]);
 	}
 
 	spin_lock_irqsave(&cs->ev_lock, flags);
@@ -594,7 +595,7 @@ void gigaset_handle_modem_response(struct cardstate *cs)
 	while (curarg < params) {
 		next = (tail + 1) % MAX_EVENTS;
 		if (unlikely(next == head)) {
-			err("event queue full");
+			dev_err(cs->dev, "event queue full\n");
 			break;
 		}
 
@@ -615,7 +616,8 @@ void gigaset_handle_modem_response(struct cardstate *cs)
 
 			if (!rt->response) {
 				event->type = RSP_UNKNOWN;
-				warn("unknown modem response: %s",
+				dev_warn(cs->dev,
+					 "unknown modem response: %s\n",
 					 argv[curarg]);
 				break;
 			}
@@ -632,7 +634,8 @@ void gigaset_handle_modem_response(struct cardstate *cs)
 			break;
 		case RT_RING:
 			if (!cid) {
-				err("received RING without CID!");
+				dev_err(cs->dev,
+					"received RING without CID!\n");
 				event->type = RSP_INVAL;
 				abort = 1;
 			} else {
@@ -660,27 +663,25 @@ void gigaset_handle_modem_response(struct cardstate *cs)
 				event->parameter = ZSAU_DISCONNECT_REQ;
 			else {
 				event->parameter = ZSAU_UNKNOWN;
-				warn("%s: unknown parameter %s after ZSAU",
+				dev_warn(cs->dev,
+					"%s: unknown parameter %s after ZSAU\n",
 					 __func__, argv[curarg]);
 			}
 			++curarg;
 			break;
 		case RT_STRING:
 			if (curarg < params) {
-				len = strlen(argv[curarg]) + 1;
+				event->ptr = kstrdup(argv[curarg], GFP_ATOMIC);
-				event->ptr = kmalloc(len, GFP_ATOMIC);
+				if (!event->ptr)
-				if (event->ptr)
+					dev_err(cs->dev, "out of memory\n");
-					memcpy(event->ptr, argv[curarg], len);
-				else
-					err("no memory for string!");
 				++curarg;
 			}
 #ifdef CONFIG_GIGASET_DEBUG
 			if (!event->ptr)
-				dbg(DEBUG_CMD, "string==NULL");
+				gig_dbg(DEBUG_CMD, "string==NULL");
 			else
-				dbg(DEBUG_CMD,
+				gig_dbg(DEBUG_CMD, "string==%s",
-				    "string==%s", (char *) event->ptr);
+					(char *) event->ptr);
 #endif
 			break;
 		case RT_ZCAU:
@@ -708,7 +709,7 @@ void gigaset_handle_modem_response(struct cardstate *cs)
 			} else
 				event->parameter = -1;
 #ifdef CONFIG_GIGASET_DEBUG
-			dbg(DEBUG_CMD, "parameter==%d", event->parameter);
+			gig_dbg(DEBUG_CMD, "parameter==%d", event->parameter);
 #endif
 			break;
 		}
@@ -724,7 +725,8 @@ void gigaset_handle_modem_response(struct cardstate *cs)
 	spin_unlock_irqrestore(&cs->ev_lock, flags);
 
 	if (curarg != params)
-		dbg(DEBUG_ANY, "invalid number of processed parameters: %d/%d",
+		gig_dbg(DEBUG_ANY,
+			"invalid number of processed parameters: %d/%d",
 			curarg, params);
 }
 EXPORT_SYMBOL_GPL(gigaset_handle_modem_response);
@@ -750,7 +752,7 @@ static void disconnect(struct at_state_t **at_state_p)
 	if (!atomic_read(&cs->cidmode)) {
 		cs->at_state.pending_commands |= PC_UMMODE;
 		atomic_set(&cs->commands_pending, 1); //FIXME
-		dbg(DEBUG_CMD, "Scheduling PC_UMMODE");
+		gig_dbg(DEBUG_CMD, "Scheduling PC_UMMODE");
 	}
 
 	if (bcs) {
@@ -822,7 +824,7 @@ static void init_failed(struct cardstate *cs, int mode)
 static void schedule_init(struct cardstate *cs, int state)
 {
 	if (cs->at_state.pending_commands & PC_INIT) {
-		dbg(DEBUG_CMD, "not scheduling PC_INIT again");
+		gig_dbg(DEBUG_CMD, "not scheduling PC_INIT again");
 		return;
 	}
 	atomic_set(&cs->mstate, state);
@@ -830,7 +832,7 @@ static void schedule_init(struct cardstate *cs, int state)
 	gigaset_block_channels(cs);
 	cs->at_state.pending_commands |= PC_INIT;
 	atomic_set(&cs->commands_pending, 1);
-	dbg(DEBUG_CMD, "Scheduling PC_INIT");
+	gig_dbg(DEBUG_CMD, "Scheduling PC_INIT");
 }
 
 /* Add "AT" to a command, add the cid, dle encode it, send the result to the
@@ -843,10 +845,17 @@ static void send_command(struct cardstate *cs, const char *cmd, int cid,
 
 	cmdlen = strlen(cmd);
 	buflen = 11 + cmdlen;
+	if (unlikely(buflen <= cmdlen)) {
+		dev_err(cs->dev, "integer overflow in buflen\n");
+		return;
+	}
 
-	if (likely(buflen > cmdlen)) {
 	cmdbuf = kmalloc(buflen, kmallocflags);
-		if (likely(cmdbuf != NULL)) {
+	if (unlikely(!cmdbuf)) {
+		dev_err(cs->dev, "out of memory\n");
+		return;
+	}
+
 	cmdpos = cmdbuf + 9;
 	cmdtail = cmdpos + cmdlen;
 	memcpy(cmdpos, cmd, cmdlen);
@@ -873,10 +882,6 @@ static void send_command(struct cardstate *cs, const char *cmd, int cid,
 
 	cs->ops->write_cmd(cs, cmdpos, cmdlen, NULL);
 	kfree(cmdbuf);
-		} else
-			err("no memory for command buffer");
-	} else
-		err("overflow in buflen");
 }
 
 static struct at_state_t *at_state_from_cid(struct cardstate *cs, int cid)
@@ -930,13 +935,14 @@ static void bchannel_up(struct bc_state *bcs)
 	IFNULLRET(bcs);
 
 	if (!(bcs->chstate & CHS_D_UP)) {
-		notice("%s: D channel not up", __func__);
+		dev_notice(bcs->cs->dev, "%s: D channel not up\n", __func__);
 		bcs->chstate |= CHS_D_UP;
 		gigaset_i4l_channel_cmd(bcs, ISDN_STAT_DCONN);
 	}
 
 	if (bcs->chstate & CHS_B_UP) {
-		notice("%s: B channel already up", __func__);
+		dev_notice(bcs->cs->dev, "%s: B channel already up\n",
+			   __func__);
 		return;
 	}
 
@@ -962,13 +968,13 @@ static void start_dial(struct at_state_t *at_state, void *data, int seq_index)
 
 
 	at_state->pending_commands |= PC_CID;
-	dbg(DEBUG_CMD, "Scheduling PC_CID");
+	gig_dbg(DEBUG_CMD, "Scheduling PC_CID");
 	atomic_set(&cs->commands_pending, 1);
 	return;
 
 error:
 	at_state->pending_commands |= PC_NOCID;
-	dbg(DEBUG_CMD, "Scheduling PC_NOCID");
+	gig_dbg(DEBUG_CMD, "Scheduling PC_NOCID");
 	atomic_set(&cs->commands_pending, 1);
 	return;
 }
@@ -982,12 +988,12 @@ static void start_accept(struct at_state_t *at_state)
 
 	if (retval == 0) {
 		at_state->pending_commands |= PC_ACCEPT;
-		dbg(DEBUG_CMD, "Scheduling PC_ACCEPT");
+		gig_dbg(DEBUG_CMD, "Scheduling PC_ACCEPT");
 		atomic_set(&cs->commands_pending, 1);
 	} else {
 		//FIXME
 		at_state->pending_commands |= PC_HUP;
-		dbg(DEBUG_CMD, "Scheduling PC_HUP");
+		gig_dbg(DEBUG_CMD, "Scheduling PC_HUP");
 		atomic_set(&cs->commands_pending, 1);
 	}
 }
@@ -1029,7 +1035,7 @@ static void do_shutdown(struct cardstate *cs)
 		atomic_set(&cs->mstate, MS_SHUTDOWN);
 		cs->at_state.pending_commands |= PC_SHUTDOWN;
 		atomic_set(&cs->commands_pending, 1);
-		dbg(DEBUG_CMD, "Scheduling PC_SHUTDOWN");
+		gig_dbg(DEBUG_CMD, "Scheduling PC_SHUTDOWN");
 	} else
 		finish_shutdown(cs);
 }
@@ -1059,9 +1065,11 @@ static int reinit_and_retry(struct cardstate *cs, int channel)
 			return 0;
 
 	if (channel < 0)
-		warn("Could not enter cid mode. Reinit device and try again.");
+		dev_warn(cs->dev,
+		    "Could not enter cid mode. Reinit device and try again.\n");
 	else {
-		warn("Could not get a call id. Reinit device and try again.");
+		dev_warn(cs->dev,
+		    "Could not get a call id. Reinit device and try again.\n");
 		cs->bcs[channel].at_state.pending_commands |= PC_CID;
 	}
 	schedule_init(cs, MS_INIT);
@@ -1106,7 +1114,7 @@ static void handle_icall(struct cardstate *cs, struct bc_state *bcs,
 	case ICALL_ACCEPT:
 		break;
 	default:
-		err("internal error: disposition=%d", retval);
+		dev_err(cs->dev, "internal error: disposition=%d\n", retval);
 		/* --v-- fall through --v-- */
 	case ICALL_IGNORE:
 	case ICALL_REJECT:
@@ -1201,10 +1209,10 @@ static void do_action(int action, struct cardstate *cs,
 		}
 		cs->at_state.pending_commands |= PC_CIDMODE;
 		atomic_set(&cs->commands_pending, 1);
-		dbg(DEBUG_CMD, "Scheduling PC_CIDMODE");
+		gig_dbg(DEBUG_CMD, "Scheduling PC_CIDMODE");
 		break;
 	case ACT_FAILINIT:
-		warn("Could not initialize the device.");
+		dev_warn(cs->dev, "Could not initialize the device.\n");
 		cs->dle = 0;
 		init_failed(cs, M_UNKNOWN);
 		cs->cur_at_seq = SEQ_NONE;
@@ -1260,8 +1268,8 @@ static void do_action(int action, struct cardstate *cs,
 		/* get fresh AT state structure for new CID */
 		at_state2 = get_free_channel(cs, ev->parameter);
 		if (!at_state2) {
-			warn("RING ignored: "
+			dev_warn(cs->dev,
-			     "could not allocate channel structure");
+			"RING ignored: could not allocate channel structure\n");
 			break;
 		}
 
@@ -1289,7 +1297,7 @@ static void do_action(int action, struct cardstate *cs,
 		at_state = *p_at_state;
 		break;
 	case ACT_FAILSDOWN:
-		warn("Could not shut down the device.");
+		dev_warn(cs->dev, "Could not shut down the device.\n");
 		/* fall through */
 	case ACT_FAKESDOWN:
 	case ACT_SDOWN:
@@ -1342,7 +1350,7 @@ static void do_action(int action, struct cardstate *cs,
 		break;
 	case ACT_ABORTHUP:
 		cs->cur_at_seq = SEQ_NONE;
-		warn("Could not hang up.");
+		dev_warn(cs->dev, "Could not hang up.\n");
 		at_state->cid = -1;
 		if (bcs && cs->onechannel)
 			at_state->pending_commands |= PC_DLE0;
@@ -1354,14 +1362,15 @@ static void do_action(int action, struct cardstate *cs,
 		break;
 	case ACT_FAILDLE0:
 		cs->cur_at_seq = SEQ_NONE;
-		warn("Could not leave DLE mode.");
+		dev_warn(cs->dev, "Could not leave DLE mode.\n");
 		at_state2 = &cs->bcs[cs->curchannel].at_state;
 		disconnect(&at_state2);
 		schedule_init(cs, MS_RECOVER);
 		break;
 	case ACT_FAILDLE1:
 		cs->cur_at_seq = SEQ_NONE;
-		warn("Could not enter DLE mode. Try to hang up.");
+		dev_warn(cs->dev,
+			 "Could not enter DLE mode. Trying to hang up.\n");
 		channel = cs->curchannel;
 		cs->bcs[channel].at_state.pending_commands |= PC_HUP;
 		atomic_set(&cs->commands_pending, 1);
@@ -1382,7 +1391,8 @@ static void do_action(int action, struct cardstate *cs,
 		cs->cur_at_seq = SEQ_NONE;
 		channel = cs->curchannel;
 		if (!reinit_and_retry(cs, channel)) {
-			warn("Could not get a call id. Dialing not possible");
+			dev_warn(cs->dev,
+				 "Could not get a call ID. Cannot dial.\n");
 			at_state2 = &cs->bcs[channel].at_state;
 			disconnect(&at_state2);
 		}
@@ -1457,7 +1467,7 @@ static void do_action(int action, struct cardstate *cs,
 	case ACT_GOTVER:
 		if (cs->gotfwver == 0) {
 			cs->gotfwver = 1;
-			dbg(DEBUG_ANY,
+			gig_dbg(DEBUG_ANY,
 				"firmware version %02d.%03d.%02d.%02d",
 				cs->fwver[0], cs->fwver[1],
 				cs->fwver[2], cs->fwver[3]);
@@ -1466,7 +1476,7 @@ static void do_action(int action, struct cardstate *cs,
 		/* fall through */
 	case ACT_FAILVER:
 		cs->gotfwver = -1;
-		err("could not read firmware version.");
+		dev_err(cs->dev, "could not read firmware version.\n");
 		break;
 #ifdef CONFIG_GIGASET_DEBUG
 	case ACT_ERROR:
@@ -1484,15 +1494,15 @@ static void do_action(int action, struct cardstate *cs,
 		break;
 #endif
 	case ACT_DEBUG:
-		dbg(DEBUG_ANY, "%s: resp_code %d in ConState %d",
+		gig_dbg(DEBUG_ANY, "%s: resp_code %d in ConState %d",
 			__func__, ev->type, at_state->ConState);
 		break;
 	case ACT_WARN:
-		warn("%s: resp_code %d in ConState %d!",
+		dev_warn(cs->dev, "%s: resp_code %d in ConState %d!\n",
 			 __func__, ev->type, at_state->ConState);
 		break;
 	case ACT_ZCAU:
-		warn("cause code %04x in connection state %d.",
+		dev_warn(cs->dev, "cause code %04x in connection state %d.\n",
 			 ev->parameter, at_state->ConState);
 		break;
 
@@ -1504,14 +1514,14 @@ static void do_action(int action, struct cardstate *cs,
 		start_accept(at_state);
 		break;
 	case ACT_PROTO_L2:
-		dbg(DEBUG_CMD,
+		gig_dbg(DEBUG_CMD, "set protocol to %u",
-		    "set protocol to %u", (unsigned) ev->parameter);
+			(unsigned) ev->parameter);
 		at_state->bcs->proto2 = ev->parameter;
 		break;
 	case ACT_HUP:
 		at_state->pending_commands |= PC_HUP;
 		atomic_set(&cs->commands_pending, 1);
-		dbg(DEBUG_CMD, "Scheduling PC_HUP");
+		gig_dbg(DEBUG_CMD, "Scheduling PC_HUP");
 		break;
 
 	/* hotplug events */
@@ -1547,10 +1557,10 @@ static void do_action(int action, struct cardstate *cs,
 			atomic_set(&cs->cidmode, ev->parameter);
 			if (ev->parameter) {
 				cs->at_state.pending_commands |= PC_CIDMODE;
-				dbg(DEBUG_CMD, "Scheduling PC_CIDMODE");
+				gig_dbg(DEBUG_CMD, "Scheduling PC_CIDMODE");
 			} else {
 				cs->at_state.pending_commands |= PC_UMMODE;
-				dbg(DEBUG_CMD, "Scheduling PC_UMMODE");
+				gig_dbg(DEBUG_CMD, "Scheduling PC_UMMODE");
 			}
 			atomic_set(&cs->commands_pending, 1);
 		}
@@ -1578,7 +1588,7 @@ static void do_action(int action, struct cardstate *cs,
 				*p_resp_code = RSP_NULL;
 			}
 		} else
-			err("%s: action==%d!", __func__, action);
+			dev_err(cs->dev, "%s: action==%d!\n", __func__, action);
 	}
 }
 
@@ -1610,14 +1620,14 @@ static void process_event(struct cardstate *cs, struct event_t *ev)
 	} else {
 		at_state = ev->at_state;
 		if (at_state_invalid(cs, at_state)) {
-			dbg(DEBUG_ANY,
+			gig_dbg(DEBUG_ANY, "event for invalid at_state %p",
-			    "event for invalid at_state %p", at_state);
+				at_state);
 			return;
 		}
 	}
 
-	dbg(DEBUG_CMD,
+	gig_dbg(DEBUG_CMD, "connection state %d, event %d",
-	    "connection state %d, event %d", at_state->ConState, ev->type);
+		at_state->ConState, ev->type);
 
 	bcs = at_state->bcs;
 	sendcid = at_state->cid;
@@ -1630,11 +1640,11 @@ static void process_event(struct cardstate *cs, struct event_t *ev)
 		if (ev->parameter != atomic_read(&at_state->timer_index)
 		    || !at_state->timer_active) {
 			ev->type = RSP_NONE; /* old timeout */
-			dbg(DEBUG_ANY, "old timeout");
+			gig_dbg(DEBUG_ANY, "old timeout");
 		} else if (!at_state->waiting)
-			dbg(DEBUG_ANY, "timeout occured");
+			gig_dbg(DEBUG_ANY, "timeout occurred");
 		else
-			dbg(DEBUG_ANY, "stopped waiting");
+			gig_dbg(DEBUG_ANY, "stopped waiting");
 	}
 
 	/* if the response belongs to a variable in at_state->int_var[VAR_XXXX]
@@ -1657,10 +1667,10 @@ static void process_event(struct cardstate *cs, struct event_t *ev)
 	   constate */
 	for (;; rep++) {
 		rcode = rep->resp_code;
-		/* dbg (DEBUG_ANY, "rcode %d", rcode); */
 		if (rcode == RSP_LAST) {
 			/* found nothing...*/
-			warn("%s: rcode=RSP_LAST: resp_code %d in ConState %d!",
+			dev_warn(cs->dev, "%s: rcode=RSP_LAST: "
+					"resp_code %d in ConState %d!\n",
 				 __func__, ev->type, at_state->ConState);
 			return;
 		}
@@ -1741,11 +1751,11 @@ static void process_command_flags(struct cardstate *cs)
 	atomic_set(&cs->commands_pending, 0);
 
 	if (cs->cur_at_seq) {
-		dbg(DEBUG_CMD, "not searching scheduled commands: busy");
+		gig_dbg(DEBUG_CMD, "not searching scheduled commands: busy");
 		return;
 	}
 
-	dbg(DEBUG_CMD, "searching scheduled commands");
+	gig_dbg(DEBUG_CMD, "searching scheduled commands");
 
 	sequence = SEQ_NONE;
 
@@ -1884,7 +1894,7 @@ static void process_command_flags(struct cardstate *cs)
 			switch (atomic_read(&cs->mode)) {
 			case M_UNIMODEM:
 				cs->at_state.pending_commands |= PC_CIDMODE;
-				dbg(DEBUG_CMD, "Scheduling PC_CIDMODE");
+				gig_dbg(DEBUG_CMD, "Scheduling PC_CIDMODE");
 				atomic_set(&cs->commands_pending, 1);
 				return;
 #ifdef GIG_MAYINITONDIAL
@@ -1945,7 +1955,8 @@ static void process_events(struct cardstate *cs)
 	}
 
 	if (i == 2 * MAX_EVENTS) {
-		err("infinite loop in process_events; aborting.");
+		dev_err(cs->dev,
+			"infinite loop in process_events; aborting.\n");
 	}
 }
 
@@ -1962,7 +1973,7 @@ void gigaset_handle_event(unsigned long data)
 
 	/* handle incoming data on control/common channel */
 	if (atomic_read(&cs->inbuf->head) != atomic_read(&cs->inbuf->tail)) {
-		dbg(DEBUG_INTR, "processing new data");
+		gig_dbg(DEBUG_INTR, "processing new data");
 		cs->ops->handle_input(cs->inbuf);
 	}
 

drivers/isdn/gigaset/gigaset.h

@@ -137,45 +137,47 @@ enum debuglevel { /* up to 24 bits (atomic_t) */
 					 activated */
 };
 
-#ifdef CONFIG_GIGASET_DEBUG
+/* missing from linux/device.h ... */
-#define DEBUG_DEFAULT (DEBUG_INIT | DEBUG_TRANSCMD | DEBUG_CMD | DEBUG_USBREQ)
+#ifndef dev_notice
-#else
+#define dev_notice(dev, format, arg...)		\
-#define DEBUG_DEFAULT 0
+	dev_printk(KERN_NOTICE , dev , format , ## arg)
 #endif
 
-/* redefine syslog macros to prepend module name instead of entire
+/* Kernel message macros for situations where dev_printk and friends cannot be
- * source path */
+ * used for lack of reliable access to a device structure.
-#undef info
+ * linux/usb.h already contains these but in an obsolete form which clutters
-#define info(format, arg...) \
+ * the log needlessly, and according to the USB maintainer those should be
-	printk(KERN_INFO "%s: " format "\n", \
+ * removed rather than fixed anyway.
-	       THIS_MODULE ? THIS_MODULE->name : "gigaset_hw" , ## arg)
+ */
-
-#undef notice
-#define notice(format, arg...) \
-	printk(KERN_NOTICE "%s: " format "\n", \
-	       THIS_MODULE ? THIS_MODULE->name : "gigaset_hw" , ## arg)
-
-#undef warn
-#define warn(format, arg...) \
-	printk(KERN_WARNING "%s: " format "\n", \
-	       THIS_MODULE ? THIS_MODULE->name : "gigaset_hw" , ## arg)
-
 #undef err
-#define err(format, arg...) \
+#undef info
-	printk(KERN_ERR "%s: " format "\n", \
+#undef warn
-	       THIS_MODULE ? THIS_MODULE->name : "gigaset_hw" , ## arg)
+#undef notice
+
+#define err(format, arg...) printk(KERN_ERR KBUILD_MODNAME ": " \
+	format "\n" , ## arg)
+#define info(format, arg...) printk(KERN_INFO KBUILD_MODNAME ": " \
+	format "\n" , ## arg)
+#define warn(format, arg...) printk(KERN_WARNING KBUILD_MODNAME ": " \
+	format "\n" , ## arg)
+#define notice(format, arg...) printk(KERN_NOTICE KBUILD_MODNAME ": " \
+	format "\n" , ## arg)
 
-#undef dbg
 #ifdef CONFIG_GIGASET_DEBUG
-#define dbg(level, format, arg...) \
+
+#define gig_dbg(level, format, arg...) \
 	do { \
 		if (unlikely(((enum debuglevel)gigaset_debuglevel) & (level))) \
-			printk(KERN_DEBUG "%s: " format "\n", \
+			printk(KERN_DEBUG KBUILD_MODNAME ": " format "\n", \
-			       THIS_MODULE ? THIS_MODULE->name : "gigaset_hw" \
+			       ## arg); \
-			       , ## arg); \
 	} while (0)
+#define DEBUG_DEFAULT (DEBUG_INIT | DEBUG_TRANSCMD | DEBUG_CMD | DEBUG_USBREQ)
+
 #else
-#define dbg(level, format, arg...) do {} while (0)
+
+#define gig_dbg(level, format, arg...) do {} while (0)
+#define DEBUG_DEFAULT 0
+
 #endif
 
 void gigaset_dbg_buffer(enum debuglevel level, const unsigned char *msg,
@@ -368,16 +370,6 @@ struct inbuf_t {
  *   BAS_OUTBUFPAD bytes immediately before data[write] (if
  *   write>=BAS_OUTBUFPAD) or those of the pad area (if write<BAS_OUTBUFPAD)
  *   are also filled with that value
- * - optionally, the following statistics on the buffer's usage can be
- *   collected:
- *   maxfill:    maximum number of bytes occupied
- *   idlefills:  number of times a frame of idle bytes is prepared
- *   emptygets:  number of times the buffer was empty when a data frame was
- *               requested
- *   backtoback: number of times two data packets were entered into the buffer
- *               without intervening idle flags
- *   nakedback:  set if no idle flags have been inserted since the last data
- *               packet
  */
 struct isowbuf_t {
 	atomic_t	read;
@@ -471,7 +463,7 @@ struct bc_state {
 	int busy;
 	int use_count;
 
-	/* hardware drivers */
+	/* private data of hardware drivers */
 	union {
 		struct ser_bc_state *ser;	/* serial hardware driver */
 		struct usb_bc_state *usb;	/* usb hardware driver (m105) */
@@ -482,6 +474,7 @@ struct bc_state {
 struct cardstate {
 	struct gigaset_driver *driver;
 	unsigned minor_index;
+	struct device *dev;
 
 	const struct gigaset_ops *ops;
 
@@ -531,11 +524,11 @@ struct cardstate {
 	int cs_init;
 	int ignoreframes;		/* frames to ignore after setting up the
 					   B channel */
-	struct semaphore sem;		/* locks this structure: */
+	struct semaphore sem;		/* locks this structure:
-					/*   connected is not changed, */
+					 *   connected is not changed,
-					/*   hardware_up is not changed, */
+					 *   hardware_up is not changed,
-					/*   MState is not changed to or from
+					 *   MState is not changed to or from
-					     MS_LOCKED */
+					 *   MS_LOCKED */
 
 	struct timer_list timer;
 	int retry_count;
@@ -543,7 +536,7 @@ struct cardstate {
 					   dle encoded */
 	int cur_at_seq;			/* sequence of AT commands being
 					   processed */
-	int curchannel;			/* channel, those commands are meant
+	int curchannel;			/* channel those commands are meant
 					   for */
 	atomic_t commands_pending;	/* flag(s) in xxx.commands_pending have
 					   been set */
@@ -551,7 +544,7 @@ struct cardstate {
 					/* tasklet for serializing AT commands.
 					 * Scheduled
 					 *   -> for modem reponses (and
-					 *      incomming data for M10x)
+					 *      incoming data for M10x)
 					 *   -> on timeout
 					 *   -> after setting bits in
 					 *      xxx.at_state.pending_command
@@ -569,7 +562,7 @@ struct cardstate {
 	unsigned char respdata[MAX_RESP_SIZE];
 	unsigned cbytes;
 
-	/* hardware drivers */
+	/* private data of hardware drivers */
 	union {
 		struct usb_cardstate *usb; /* USB hardware driver (m105) */
 		struct ser_cardstate *ser; /* serial hardware driver */
@@ -607,8 +600,8 @@ struct bas_bc_state {
 	struct isow_urbctx_t	isoouturbs[BAS_OUTURBS];
 	struct isow_urbctx_t	*isooutdone, *isooutfree, *isooutovfl;
 	struct isowbuf_t	*isooutbuf;
-	unsigned numsub;			/* submitted URB counter (for
+	unsigned numsub;		/* submitted URB counter
-						   diagnostic messages only) */
+					   (for diagnostic messages only) */
 	struct tasklet_struct	sent_tasklet;
 
 	/* isochronous input state */
@@ -618,25 +611,22 @@ struct bas_bc_state {
 	struct urb *isoindone;		/* completed isoc read URB */
 	int loststatus;			/* status of dropped URB */
 	unsigned isoinlost;		/* number of bytes lost */
-	/* state of bit unstuffing algorithm (in addition to
+	/* state of bit unstuffing algorithm
-	   BC_state.inputstate) */
+	   (in addition to BC_state.inputstate) */
 	unsigned seqlen;		/* number of '1' bits not yet
 					   unstuffed */
-	unsigned inbyte, inbits;		/* collected bits for next byte
+	unsigned inbyte, inbits;	/* collected bits for next byte */
-						*/
 	/* statistics */
 	unsigned goodbytes;		/* bytes correctly received */
-	unsigned alignerrs;			/* frames with incomplete byte
+	unsigned alignerrs;		/* frames with incomplete byte at end */
-						   at end */
 	unsigned fcserrs;		/* FCS errors */
 	unsigned frameerrs;		/* framing errors */
 	unsigned giants;		/* long frames */
 	unsigned runts;			/* short frames */
 	unsigned aborts;		/* HDLC aborts */
-	unsigned shared0s;			/* '0' bits shared between flags
+	unsigned shared0s;		/* '0' bits shared between flags */
-						*/
+	unsigned stolen0s;		/* '0' stuff bits also serving as
-	unsigned stolen0s;			/* '0' stuff bits also serving
+					   leading flag bits */
-						   as leading flag bits */
 	struct tasklet_struct rcvd_tasklet;
 };
 
@@ -764,7 +754,7 @@ static inline void gigaset_isdn_rcv_err(struct bc_state *bcs)
 	isdn_ctrl response;
 
 	/* error -> LL */
-	dbg(DEBUG_CMD, "sending L1ERR");
+	gig_dbg(DEBUG_CMD, "sending L1ERR");
 	response.driver = bcs->cs->myid;
 	response.command = ISDN_STAT_L1ERR;
 	response.arg = bcs->channel;
@@ -872,7 +862,7 @@ static inline void gigaset_bchannel_down(struct bc_state *bcs)
 {
 	gigaset_add_event(bcs->cs, &bcs->at_state, EV_BC_CLOSED, NULL, 0, NULL);
 
-	dbg(DEBUG_CMD, "scheduling BC_CLOSED");
+	gig_dbg(DEBUG_CMD, "scheduling BC_CLOSED");
 	gigaset_schedule_event(bcs->cs);
 }
 
@@ -882,7 +872,7 @@ static inline void gigaset_bchannel_up(struct bc_state *bcs)
 {
 	gigaset_add_event(bcs->cs, &bcs->at_state, EV_BC_OPEN, NULL, 0, NULL);
 
-	dbg(DEBUG_CMD, "scheduling BC_OPEN");
+	gig_dbg(DEBUG_CMD, "scheduling BC_OPEN");
 	gigaset_schedule_event(bcs->cs);
 }
 
@@ -947,7 +937,7 @@ static inline int gigaset_fill_inbuf(struct inbuf_t *inbuf,
 {
 	unsigned n, head, tail, bytesleft;
 
-	dbg(DEBUG_INTR, "received %u bytes", numbytes);
+	gig_dbg(DEBUG_INTR, "received %u bytes", numbytes);
 
 	if (!numbytes)
 		return 0;
@@ -955,7 +945,7 @@ static inline int gigaset_fill_inbuf(struct inbuf_t *inbuf,
 	bytesleft = numbytes;
 	tail = atomic_read(&inbuf->tail);
 	head = atomic_read(&inbuf->head);
-	dbg(DEBUG_INTR, "buffer state: %u -> %u", head, tail);
+	gig_dbg(DEBUG_INTR, "buffer state: %u -> %u", head, tail);
 
 	while (bytesleft) {
 		if (head > tail)
@@ -965,7 +955,8 @@ static inline int gigaset_fill_inbuf(struct inbuf_t *inbuf,
 		else
 			n = RBUFSIZE - tail;
 		if (!n) {
-			err("buffer overflow (%u bytes lost)", bytesleft);
+			dev_err(inbuf->cs->dev,
+				"buffer overflow (%u bytes lost)", bytesleft);
 			break;
 		}
 		if (n > bytesleft)
@@ -975,7 +966,7 @@ static inline int gigaset_fill_inbuf(struct inbuf_t *inbuf,
 		tail = (tail + n) % RBUFSIZE;
 		src += n;
 	}
-	dbg(DEBUG_INTR, "setting tail to %u", tail);
+	gig_dbg(DEBUG_INTR, "setting tail to %u", tail);
 	atomic_set(&inbuf->tail, tail);
 	return numbytes != bytesleft;
 }

drivers/isdn/gigaset/i4l.c

@@ -15,7 +15,7 @@
 
 #include "gigaset.h"
 
-/* == Handling of I4L IO ============================================================================*/
+/* == Handling of I4L IO =====================================================*/
 
 /* writebuf_from_LL
  * called by LL to transmit data on an open channel
@@ -33,7 +33,8 @@
  *	0 if temporarily unable to accept data (out of buffer space)
  *	<0 on error (eg. -EINVAL)
  */
-static int writebuf_from_LL(int driverID, int channel, int ack, struct sk_buff *skb)
+static int writebuf_from_LL(int driverID, int channel, int ack,
+			    struct sk_buff *skb)
 {
 	struct cardstate *cs;
 	struct bc_state *bcs;
@@ -51,28 +52,30 @@ static int writebuf_from_LL(int driverID, int channel, int ack, struct sk_buff *
 	bcs = &cs->bcs[channel];
 	len = skb->len;
 
-	dbg(DEBUG_LLDATA,
+	gig_dbg(DEBUG_LLDATA,
-	    "Receiving data from LL (id: %d, channel: %d, ack: %d, size: %d)",
+		"Receiving data from LL (id: %d, ch: %d, ack: %d, sz: %d)",
 		driverID, channel, ack, len);
 
+	if (!atomic_read(&cs->connected)) {
+		err("%s: disconnected", __func__);
+		return -ENODEV;
+	}
+
 	if (!len) {
 		if (ack)
-			warn("not ACKing empty packet from LL");
+			notice("%s: not ACKing empty packet", __func__);
 		return 0;
 	}
 	if (len > MAX_BUF_SIZE) {
-		err("%s: packet too large (%d bytes)", __func__, channel);
+		err("%s: packet too large (%d bytes)", __func__, len);
 		return -EINVAL;
 	}
 
-	if (!atomic_read(&cs->connected))
-		return -ENODEV;
-
 	skblen = ack ? len : 0;
 	skb->head[0] = skblen & 0xff;
 	skb->head[1] = skblen >> 8;
-	dbg(DEBUG_MCMD, "skb: len=%u, skblen=%u: %02x %02x", len, skblen,
+	gig_dbg(DEBUG_MCMD, "skb: len=%u, skblen=%u: %02x %02x",
-	     (unsigned) skb->head[0], (unsigned) skb->head[1]);
+		len, skblen, (unsigned) skb->head[0], (unsigned) skb->head[1]);
 
 	/* pass to device-specific module */
 	return cs->ops->send_skb(bcs, skb);
@@ -86,13 +89,13 @@ void gigaset_skb_sent(struct bc_state *bcs, struct sk_buff *skb)
 	++bcs->trans_up;
 
 	if (skb->len)
-		warn("%s: skb->len==%d", __func__, skb->len);
+		dev_warn(bcs->cs->dev, "%s: skb->len==%d\n",
+			 __func__, skb->len);
 
 	len = (unsigned char) skb->head[0] |
 	      (unsigned) (unsigned char) skb->head[1] << 8;
 	if (len) {
-		dbg(DEBUG_MCMD,
+		gig_dbg(DEBUG_MCMD, "ACKing to LL (id: %d, ch: %d, sz: %u)",
-		    "Acknowledge sending to LL (id: %d, channel: %d size: %u)",
 			bcs->cs->myid, bcs->channel, len);
 
 		response.driver = bcs->cs->myid;
@@ -117,7 +120,6 @@ static int command_from_LL(isdn_ctrl *cntrl)
 	int retval = 0;
 	struct setup_parm *sp;
 
-	//dbg(DEBUG_ANY, "Gigaset_HW: Receiving command");
 	gigaset_debugdrivers();
 
 	//FIXME "remove test for &connected"
@@ -129,29 +131,30 @@ static int command_from_LL(isdn_ctrl *cntrl)
 
 	switch (cntrl->command) {
 	case ISDN_CMD_IOCTL:
-
+		gig_dbg(DEBUG_ANY, "ISDN_CMD_IOCTL (driver: %d, arg: %ld)",
-		dbg(DEBUG_ANY, "ISDN_CMD_IOCTL (driver:%d,arg: %ld)",
 			cntrl->driver, cntrl->arg);
 
 		warn("ISDN_CMD_IOCTL is not supported.");
 		return -EINVAL;
 
 	case ISDN_CMD_DIAL:
-		dbg(DEBUG_ANY, "ISDN_CMD_DIAL (driver: %d, channel: %ld, "
+		gig_dbg(DEBUG_ANY,
+			"ISDN_CMD_DIAL (driver: %d, ch: %ld, "
 			"phone: %s, ownmsn: %s, si1: %d, si2: %d)",
 			cntrl->driver, cntrl->arg,
 			cntrl->parm.setup.phone, cntrl->parm.setup.eazmsn,
 			cntrl->parm.setup.si1, cntrl->parm.setup.si2);
 
 		if (cntrl->arg >= cs->channels) {
-			err("invalid channel (%d)", (int) cntrl->arg);
+			err("ISDN_CMD_DIAL: invalid channel (%d)",
+			    (int) cntrl->arg);
 			return -EINVAL;
 		}
 
 		bcs = cs->bcs + cntrl->arg;
 
 		if (!gigaset_get_channel(bcs)) {
-			err("channel not free");
+			err("ISDN_CMD_DIAL: channel not free");
 			return -EBUSY;
 		}
 
@@ -172,14 +175,15 @@ static int command_from_LL(isdn_ctrl *cntrl)
 			return -ENOMEM;
 		}
 
-		dbg(DEBUG_CMD, "scheduling DIAL");
+		gig_dbg(DEBUG_CMD, "scheduling DIAL");
 		gigaset_schedule_event(cs);
 		break;
 	case ISDN_CMD_ACCEPTD: //FIXME
-		dbg(DEBUG_ANY, "ISDN_CMD_ACCEPTD");
+		gig_dbg(DEBUG_ANY, "ISDN_CMD_ACCEPTD");
 
 		if (cntrl->arg >= cs->channels) {
-			err("invalid channel (%d)", (int) cntrl->arg);
+			err("ISDN_CMD_ACCEPTD: invalid channel (%d)",
+			    (int) cntrl->arg);
 			return -EINVAL;
 		}
 
@@ -189,16 +193,16 @@ static int command_from_LL(isdn_ctrl *cntrl)
 			return -ENOMEM;
 		}
 
-		dbg(DEBUG_CMD, "scheduling ACCEPT");
+		gig_dbg(DEBUG_CMD, "scheduling ACCEPT");
 		gigaset_schedule_event(cs);
 
 		break;
 	case ISDN_CMD_ACCEPTB:
-		dbg(DEBUG_ANY, "ISDN_CMD_ACCEPTB");
+		gig_dbg(DEBUG_ANY, "ISDN_CMD_ACCEPTB");
 		break;
 	case ISDN_CMD_HANGUP:
-		dbg(DEBUG_ANY,
+		gig_dbg(DEBUG_ANY, "ISDN_CMD_HANGUP (ch: %d)",
-		    "ISDN_CMD_HANGUP (channel: %d)", (int) cntrl->arg);
+			(int) cntrl->arg);
 
 		if (cntrl->arg >= cs->channels) {
 			err("ISDN_CMD_HANGUP: invalid channel (%u)",
@@ -212,24 +216,24 @@ static int command_from_LL(isdn_ctrl *cntrl)
 			return -ENOMEM;
 		}
 
-		dbg(DEBUG_CMD, "scheduling HUP");
+		gig_dbg(DEBUG_CMD, "scheduling HUP");
 		gigaset_schedule_event(cs);
 
 		break;
 	case ISDN_CMD_CLREAZ: /* Do not signal incoming signals */ //FIXME
-		dbg(DEBUG_ANY, "ISDN_CMD_CLREAZ");
+		gig_dbg(DEBUG_ANY, "ISDN_CMD_CLREAZ");
 		break;
 	case ISDN_CMD_SETEAZ: /* Signal incoming calls for given MSN */ //FIXME
-		dbg(DEBUG_ANY,
+		gig_dbg(DEBUG_ANY,
-		    "ISDN_CMD_SETEAZ (id:%d, channel: %ld, number: %s)",
+			"ISDN_CMD_SETEAZ (id: %d, ch: %ld, number: %s)",
 			cntrl->driver, cntrl->arg, cntrl->parm.num);
 		break;
 	case ISDN_CMD_SETL2: /* Set L2 to given protocol */
-		dbg(DEBUG_ANY, "ISDN_CMD_SETL2 (Channel: %ld, Proto: %lx)",
+		gig_dbg(DEBUG_ANY, "ISDN_CMD_SETL2 (ch: %ld, proto: %lx)",
 			cntrl->arg & 0xff, (cntrl->arg >> 8));
 
 		if ((cntrl->arg & 0xff) >= cs->channels) {
-			err("invalid channel (%u)",
+			err("ISDN_CMD_SETL2: invalid channel (%u)",
 			    (unsigned) cntrl->arg & 0xff);
 			return -EINVAL;
 		}
@@ -241,32 +245,34 @@ static int command_from_LL(isdn_ctrl *cntrl)
 			return -ENOMEM;
 		}
 
-		dbg(DEBUG_CMD, "scheduling PROTO_L2");
+		gig_dbg(DEBUG_CMD, "scheduling PROTO_L2");
 		gigaset_schedule_event(cs);
 		break;
 	case ISDN_CMD_SETL3: /* Set L3 to given protocol */
-		dbg(DEBUG_ANY, "ISDN_CMD_SETL3 (Channel: %ld, Proto: %lx)",
+		gig_dbg(DEBUG_ANY, "ISDN_CMD_SETL3 (ch: %ld, proto: %lx)",
 			cntrl->arg & 0xff, (cntrl->arg >> 8));
 
 		if ((cntrl->arg & 0xff) >= cs->channels) {
-			err("invalid channel (%u)",
+			err("ISDN_CMD_SETL3: invalid channel (%u)",
 			    (unsigned) cntrl->arg & 0xff);
 			return -EINVAL;
 		}
 
 		if (cntrl->arg >> 8 != ISDN_PROTO_L3_TRANS) {
-			err("invalid protocol %lu", cntrl->arg >> 8);
+			err("ISDN_CMD_SETL3: invalid protocol %lu",
+			    cntrl->arg >> 8);
 			return -EINVAL;
 		}
 
 		break;
 	case ISDN_CMD_PROCEED:
-		dbg(DEBUG_ANY, "ISDN_CMD_PROCEED"); //FIXME
+		gig_dbg(DEBUG_ANY, "ISDN_CMD_PROCEED"); //FIXME
 		break;
 	case ISDN_CMD_ALERT:
-		dbg(DEBUG_ANY, "ISDN_CMD_ALERT"); //FIXME
+		gig_dbg(DEBUG_ANY, "ISDN_CMD_ALERT"); //FIXME
 		if (cntrl->arg >= cs->channels) {
-			err("invalid channel (%d)", (int) cntrl->arg);
+			err("ISDN_CMD_ALERT: invalid channel (%d)",
+			    (int) cntrl->arg);
 			return -EINVAL;
 		}
 		//bcs = cs->bcs + cntrl->arg;
@@ -274,32 +280,31 @@ static int command_from_LL(isdn_ctrl *cntrl)
 		// FIXME
 		break;
 	case ISDN_CMD_REDIR:
-		dbg(DEBUG_ANY, "ISDN_CMD_REDIR"); //FIXME
+		gig_dbg(DEBUG_ANY, "ISDN_CMD_REDIR"); //FIXME
 		break;
 	case ISDN_CMD_PROT_IO:
-		dbg(DEBUG_ANY, "ISDN_CMD_PROT_IO");
+		gig_dbg(DEBUG_ANY, "ISDN_CMD_PROT_IO");
 		break;
 	case ISDN_CMD_FAXCMD:
-		dbg(DEBUG_ANY, "ISDN_CMD_FAXCMD");
+		gig_dbg(DEBUG_ANY, "ISDN_CMD_FAXCMD");
 		break;
 	case ISDN_CMD_GETL2:
-		dbg(DEBUG_ANY, "ISDN_CMD_GETL2");
+		gig_dbg(DEBUG_ANY, "ISDN_CMD_GETL2");
 		break;
 	case ISDN_CMD_GETL3:
-		dbg(DEBUG_ANY, "ISDN_CMD_GETL3");
+		gig_dbg(DEBUG_ANY, "ISDN_CMD_GETL3");
 		break;
 	case ISDN_CMD_GETEAZ:
-		dbg(DEBUG_ANY, "ISDN_CMD_GETEAZ");
+		gig_dbg(DEBUG_ANY, "ISDN_CMD_GETEAZ");
 		break;
 	case ISDN_CMD_SETSIL:
-		dbg(DEBUG_ANY, "ISDN_CMD_SETSIL");
+		gig_dbg(DEBUG_ANY, "ISDN_CMD_SETSIL");
 		break;
 	case ISDN_CMD_GETSIL:
-		dbg(DEBUG_ANY, "ISDN_CMD_GETSIL");
+		gig_dbg(DEBUG_ANY, "ISDN_CMD_GETSIL");
 		break;
 	default:
-		err("unknown command %d from LL",
+		err("unknown command %d from LL", cntrl->command);
-		     cntrl->command);
 		return -EINVAL;
 	}
 
@@ -344,7 +349,8 @@ int gigaset_isdn_setup_dial(struct at_state_t *at_state, void *data)
 		proto = 2; /* 0: Bitsynchron, 1: HDLC, 2: voice */
 		break;
 	default:
-		err("invalid protocol: %u", bcs->proto2);
+		dev_err(bcs->cs->dev, "%s: invalid L2 protocol: %u\n",
+			__func__, bcs->proto2);
 		return -EINVAL;
 	}
 
@@ -372,7 +378,7 @@ int gigaset_isdn_setup_dial(struct at_state_t *at_state, void *data)
 		bcs->commands[i] = NULL;
 		if (length[i] &&
 		    !(bcs->commands[i] = kmalloc(length[i], GFP_ATOMIC))) {
-			err("out of memory");
+			dev_err(bcs->cs->dev, "out of memory\n");
 			return -ENOMEM;
 		}
 	}
@@ -417,7 +423,8 @@ int gigaset_isdn_setup_accept(struct at_state_t *at_state)
 		proto = 2; /* 0: Bitsynchron, 1: HDLC, 2: voice */
 		break;
 	default:
-		err("invalid protocol: %u", bcs->proto2);
+		dev_err(at_state->cs->dev, "%s: invalid protocol: %u\n",
+			__func__, bcs->proto2);
 		return -EINVAL;
 	}
 
@@ -434,7 +441,7 @@ int gigaset_isdn_setup_accept(struct at_state_t *at_state)
 		bcs->commands[i] = NULL;
 		if (length[i] &&
 		    !(bcs->commands[i] = kmalloc(length[i], GFP_ATOMIC))) {
-			err("out of memory");
+			dev_err(at_state->cs->dev, "out of memory\n");
 			return -ENOMEM;
 		}
 	}
@@ -473,7 +480,7 @@ int gigaset_isdn_icall(struct at_state_t *at_state)
 		response.parm.setup.si1 = 1;
 		response.parm.setup.si2 = 2;
 	} else {
-		warn("RING ignored - unsupported BC %s",
+		dev_warn(cs->dev, "RING ignored - unsupported BC %s\n",
 		     at_state->str_var[STR_ZBC]);
 		return ICALL_IGNORE;
 	}
@@ -491,18 +498,17 @@ int gigaset_isdn_icall(struct at_state_t *at_state)
 		response.parm.setup.eazmsn[0] = 0;
 
 	if (!bcs) {
-		notice("no channel for incoming call");
+		dev_notice(cs->dev, "no channel for incoming call\n");
-		dbg(DEBUG_CMD, "Sending ICALLW");
 		response.command = ISDN_STAT_ICALLW;
 		response.arg = 0; //FIXME
 	} else {
-		dbg(DEBUG_CMD, "Sending ICALL");
+		gig_dbg(DEBUG_CMD, "Sending ICALL");
 		response.command = ISDN_STAT_ICALL;
 		response.arg = bcs->channel; //FIXME
 	}
 	response.driver = cs->myid;
 	retval = cs->iif.statcallb(&response);
-	dbg(DEBUG_CMD, "Response: %d", retval);
+	gig_dbg(DEBUG_CMD, "Response: %d", retval);
 	switch (retval) {
 	case 0:	/* no takers */
 		return ICALL_IGNORE;
@@ -512,7 +518,8 @@ int gigaset_isdn_icall(struct at_state_t *at_state)
 	case 2:	/* reject */
 		return ICALL_REJECT;
 	case 3:	/* incomplete */
-		warn("LL requested unsupported feature: Incomplete Number");
+		dev_warn(cs->dev,
+		       "LL requested unsupported feature: Incomplete Number\n");
 		return ICALL_IGNORE;
 	case 4:	/* proceeding */
 		/* Gigaset will send ALERTING anyway.
@@ -520,10 +527,11 @@ int gigaset_isdn_icall(struct at_state_t *at_state)
 		 */
 		return ICALL_ACCEPT;
 	case 5:	/* deflect */
-		warn("LL requested unsupported feature: Call Deflection");
+		dev_warn(cs->dev,
+			 "LL requested unsupported feature: Call Deflection\n");
 		return ICALL_IGNORE;
 	default:
-		err("LL error %d on ICALL", retval);
+		dev_err(cs->dev, "LL error %d on ICALL\n", retval);
 		return ICALL_IGNORE;
 	}
 }
@@ -533,7 +541,7 @@ int gigaset_register_to_LL(struct cardstate *cs, const char *isdnid)
 {
 	isdn_if *iif = &cs->iif;
 
-	dbg(DEBUG_ANY, "Register driver capabilities to LL");
+	gig_dbg(DEBUG_ANY, "Register driver capabilities to LL");
 
 	//iif->id[sizeof(iif->id) - 1]=0;
 	//strncpy(iif->id, isdnid, sizeof(iif->id) - 1);

drivers/isdn/gigaset/interface.c

@@ -22,7 +22,7 @@ static int if_lock(struct cardstate *cs, int *arg)
 {
 	int cmd = *arg;
 
-	dbg(DEBUG_IF, "%u: if_lock (%d)", cs->minor_index, cmd);
+	gig_dbg(DEBUG_IF, "%u: if_lock (%d)", cs->minor_index, cmd);
 
 	if (cmd > 1)
 		return -EINVAL;
@@ -47,7 +47,7 @@ static int if_lock(struct cardstate *cs, int *arg)
 		return -ENOMEM;
 	}
 
-	dbg(DEBUG_CMD, "scheduling IF_LOCK");
+	gig_dbg(DEBUG_CMD, "scheduling IF_LOCK");
 	gigaset_schedule_event(cs);
 
 	wait_event(cs->waitqueue, !cs->waiting);
@@ -66,7 +66,7 @@ static int if_version(struct cardstate *cs, unsigned arg[4])
 	static const unsigned compat[4] = GIG_COMPAT;
 	unsigned cmd = arg[0];
 
-	dbg(DEBUG_IF, "%u: if_version (%d)", cs->minor_index, cmd);
+	gig_dbg(DEBUG_IF, "%u: if_version (%d)", cs->minor_index, cmd);
 
 	switch (cmd) {
 	case GIGVER_DRIVER:
@@ -83,7 +83,7 @@ static int if_version(struct cardstate *cs, unsigned arg[4])
 			return -ENOMEM;
 		}
 
-		dbg(DEBUG_CMD, "scheduling IF_VER");
+		gig_dbg(DEBUG_CMD, "scheduling IF_VER");
 		gigaset_schedule_event(cs);
 
 		wait_event(cs->waitqueue, !cs->waiting);
@@ -99,7 +99,7 @@ static int if_version(struct cardstate *cs, unsigned arg[4])
 
 static int if_config(struct cardstate *cs, int *arg)
 {
-	dbg(DEBUG_IF, "%u: if_config (%d)", cs->minor_index, *arg);
+	gig_dbg(DEBUG_IF, "%u: if_config (%d)", cs->minor_index, *arg);
 
 	if (*arg != 1)
 		return -EINVAL;
@@ -151,8 +151,8 @@ static int if_open(struct tty_struct *tty, struct file *filp)
 	struct cardstate *cs;
 	unsigned long flags;
 
-	dbg(DEBUG_IF, "%d+%d: %s()", tty->driver->minor_start, tty->index,
+	gig_dbg(DEBUG_IF, "%d+%d: %s()",
-	    __FUNCTION__);
+		tty->driver->minor_start, tty->index, __func__);
 
 	tty->driver_data = NULL;
 
@@ -184,16 +184,16 @@ static void if_close(struct tty_struct *tty, struct file *filp)
 
 	cs = (struct cardstate *) tty->driver_data;
 	if (!cs) {
-		err("cs==NULL in %s", __FUNCTION__);
+		err("cs==NULL in %s", __func__);
 		return;
 	}
 
-	dbg(DEBUG_IF, "%u: %s()", cs->minor_index, __FUNCTION__);
+	gig_dbg(DEBUG_IF, "%u: %s()", cs->minor_index, __func__);
 
 	down(&cs->sem);
 
 	if (!cs->open_count)
-		warn("%s: device not opened", __FUNCTION__);
+		warn("%s: device not opened", __func__);
 	else {
 		if (!--cs->open_count) {
 			spin_lock_irqsave(&cs->lock, flags);
@@ -216,17 +216,17 @@ static int if_ioctl(struct tty_struct *tty, struct file *file,
 
 	cs = (struct cardstate *) tty->driver_data;
 	if (!cs) {
-		err("cs==NULL in %s", __FUNCTION__);
+		err("cs==NULL in %s", __func__);
 		return -ENODEV;
 	}
 
-	dbg(DEBUG_IF, "%u: %s(0x%x)", cs->minor_index, __FUNCTION__, cmd);
+	gig_dbg(DEBUG_IF, "%u: %s(0x%x)", cs->minor_index, __func__, cmd);
 
 	if (down_interruptible(&cs->sem))
 		return -ERESTARTSYS; // FIXME -EINTR?
 
 	if (!cs->open_count)
-		warn("%s: device not opened", __FUNCTION__);
+		warn("%s: device not opened", __func__);
 	else {
 		retval = 0;
 		switch (cmd) {
@@ -249,7 +249,7 @@ static int if_ioctl(struct tty_struct *tty, struct file *file,
 			gigaset_dbg_buffer(DEBUG_IF, "GIGASET_BRKCHARS",
 					   6, (const unsigned char *) arg, 1);
 			if (!atomic_read(&cs->connected)) {
-				dbg(DEBUG_ANY,
+				gig_dbg(DEBUG_ANY,
 				    "can't communicate with unplugged device");
 				retval = -ENODEV;
 				break;
@@ -262,8 +262,8 @@ static int if_ioctl(struct tty_struct *tty, struct file *file,
 			break;
 		case GIGASET_VERSION:
 			retval = copy_from_user(version,
-			                        (unsigned __user *) arg,
+					(unsigned __user *) arg, sizeof version)
-			                        sizeof version) ? -EFAULT : 0;
+				? -EFAULT : 0;
 			if (retval >= 0)
 				retval = if_version(cs, version);
 			if (retval >= 0)
@@ -272,8 +272,8 @@ static int if_ioctl(struct tty_struct *tty, struct file *file,
 					? -EFAULT : 0;
 			break;
 		default:
-			dbg(DEBUG_ANY, "%s: arg not supported - 0x%04x",
+			gig_dbg(DEBUG_ANY, "%s: arg not supported - 0x%04x",
-			    __FUNCTION__, cmd);
+				__func__, cmd);
 			retval = -ENOIOCTLCMD;
 		}
 	}
@@ -290,11 +290,11 @@ static int if_tiocmget(struct tty_struct *tty, struct file *file)
 
 	cs = (struct cardstate *) tty->driver_data;
 	if (!cs) {
-		err("cs==NULL in %s", __FUNCTION__);
+		err("cs==NULL in %s", __func__);
 		return -ENODEV;
 	}
 
-	dbg(DEBUG_IF, "%u: %s()", cs->minor_index, __FUNCTION__);
+	gig_dbg(DEBUG_IF, "%u: %s()", cs->minor_index, __func__);
 
 	if (down_interruptible(&cs->sem))
 		return -ERESTARTSYS; // FIXME -EINTR?
@@ -316,18 +316,18 @@ static int if_tiocmset(struct tty_struct *tty, struct file *file,
 
 	cs = (struct cardstate *) tty->driver_data;
 	if (!cs) {
-		err("cs==NULL in %s", __FUNCTION__);
+		err("cs==NULL in %s", __func__);
 		return -ENODEV;
 	}
 
-	dbg(DEBUG_IF,
+	gig_dbg(DEBUG_IF, "%u: %s(0x%x, 0x%x)",
-	    "%u: %s(0x%x, 0x%x)", cs->minor_index, __FUNCTION__, set, clear);
+		cs->minor_index, __func__, set, clear);
 
 	if (down_interruptible(&cs->sem))
 		return -ERESTARTSYS; // FIXME -EINTR?
 
 	if (!atomic_read(&cs->connected)) {
-		dbg(DEBUG_ANY, "can't communicate with unplugged device");
+		gig_dbg(DEBUG_ANY, "can't communicate with unplugged device");
 		retval = -ENODEV;
 	} else {
 		mc = (cs->control_state | set) & ~clear & (TIOCM_RTS|TIOCM_DTR);
@@ -347,22 +347,22 @@ static int if_write(struct tty_struct *tty, const unsigned char *buf, int count)
 
 	cs = (struct cardstate *) tty->driver_data;
 	if (!cs) {
-		err("cs==NULL in %s", __FUNCTION__);
+		err("cs==NULL in %s", __func__);
 		return -ENODEV;
 	}
 
-	dbg(DEBUG_IF, "%u: %s()", cs->minor_index, __FUNCTION__);
+	gig_dbg(DEBUG_IF, "%u: %s()", cs->minor_index, __func__);
 
 	if (down_interruptible(&cs->sem))
 		return -ERESTARTSYS; // FIXME -EINTR?
 
 	if (!cs->open_count)
-		warn("%s: device not opened", __FUNCTION__);
+		warn("%s: device not opened", __func__);
 	else if (atomic_read(&cs->mstate) != MS_LOCKED) {
 		warn("can't write to unlocked device");
 		retval = -EBUSY;
 	} else if (!atomic_read(&cs->connected)) {
-		dbg(DEBUG_ANY, "can't write to unplugged device");
+		gig_dbg(DEBUG_ANY, "can't write to unplugged device");
 		retval = -EBUSY; //FIXME
 	} else {
 		retval = cs->ops->write_cmd(cs, buf, count,
@@ -381,22 +381,22 @@ static int if_write_room(struct tty_struct *tty)
 
 	cs = (struct cardstate *) tty->driver_data;
 	if (!cs) {
-		err("cs==NULL in %s", __FUNCTION__);
+		err("cs==NULL in %s", __func__);
 		return -ENODEV;
 	}
 
-	dbg(DEBUG_IF, "%u: %s()", cs->minor_index, __FUNCTION__);
+	gig_dbg(DEBUG_IF, "%u: %s()", cs->minor_index, __func__);
 
 	if (down_interruptible(&cs->sem))
 		return -ERESTARTSYS; // FIXME -EINTR?
 
 	if (!cs->open_count)
-		warn("%s: device not opened", __FUNCTION__);
+		warn("%s: device not opened", __func__);
 	else if (atomic_read(&cs->mstate) != MS_LOCKED) {
 		warn("can't write to unlocked device");
 		retval = -EBUSY; //FIXME
 	} else if (!atomic_read(&cs->connected)) {
-		dbg(DEBUG_ANY, "can't write to unplugged device");
+		gig_dbg(DEBUG_ANY, "can't write to unplugged device");
 		retval = -EBUSY; //FIXME
 	} else
 		retval = cs->ops->write_room(cs);
@@ -413,22 +413,22 @@ static int if_chars_in_buffer(struct tty_struct *tty)
 
 	cs = (struct cardstate *) tty->driver_data;
 	if (!cs) {
-		err("cs==NULL in %s", __FUNCTION__);
+		err("cs==NULL in %s", __func__);
 		return -ENODEV;
 	}
 
-	dbg(DEBUG_IF, "%u: %s()", cs->minor_index, __FUNCTION__);
+	gig_dbg(DEBUG_IF, "%u: %s()", cs->minor_index, __func__);
 
 	if (down_interruptible(&cs->sem))
 		return -ERESTARTSYS; // FIXME -EINTR?
 
 	if (!cs->open_count)
-		warn("%s: device not opened", __FUNCTION__);
+		warn("%s: device not opened", __func__);
 	else if (atomic_read(&cs->mstate) != MS_LOCKED) {
 		warn("can't write to unlocked device");
 		retval = -EBUSY;
 	} else if (!atomic_read(&cs->connected)) {
-		dbg(DEBUG_ANY, "can't write to unplugged device");
+		gig_dbg(DEBUG_ANY, "can't write to unplugged device");
 		retval = -EBUSY; //FIXME
 	} else
 		retval = cs->ops->chars_in_buffer(cs);
@@ -444,16 +444,16 @@ static void if_throttle(struct tty_struct *tty)
 
 	cs = (struct cardstate *) tty->driver_data;
 	if (!cs) {
-		err("cs==NULL in %s", __FUNCTION__);
+		err("cs==NULL in %s", __func__);
 		return;
 	}
 
-	dbg(DEBUG_IF, "%u: %s()", cs->minor_index, __FUNCTION__);
+	gig_dbg(DEBUG_IF, "%u: %s()", cs->minor_index, __func__);
 
 	down(&cs->sem);
 
 	if (!cs->open_count)
-		warn("%s: device not opened", __FUNCTION__);
+		warn("%s: device not opened", __func__);
 	else {
 		//FIXME
 	}
@@ -467,16 +467,16 @@ static void if_unthrottle(struct tty_struct *tty)
 
 	cs = (struct cardstate *) tty->driver_data;
 	if (!cs) {
-		err("cs==NULL in %s", __FUNCTION__);
+		err("cs==NULL in %s", __func__);
 		return;
 	}
 
-	dbg(DEBUG_IF, "%u: %s()", cs->minor_index, __FUNCTION__);
+	gig_dbg(DEBUG_IF, "%u: %s()", cs->minor_index, __func__);
 
 	down(&cs->sem);
 
 	if (!cs->open_count)
-		warn("%s: device not opened", __FUNCTION__);
+		warn("%s: device not opened", __func__);
 	else {
 		//FIXME
 	}
@@ -494,21 +494,21 @@ static void if_set_termios(struct tty_struct *tty, struct termios *old)
 
 	cs = (struct cardstate *) tty->driver_data;
 	if (!cs) {
-		err("cs==NULL in %s", __FUNCTION__);
+		err("cs==NULL in %s", __func__);
 		return;
 	}
 
-	dbg(DEBUG_IF, "%u: %s()", cs->minor_index, __FUNCTION__);
+	gig_dbg(DEBUG_IF, "%u: %s()", cs->minor_index, __func__);
 
 	down(&cs->sem);
 
 	if (!cs->open_count) {
-		warn("%s: device not opened", __FUNCTION__);
+		warn("%s: device not opened", __func__);
 		goto out;
 	}
 
 	if (!atomic_read(&cs->connected)) {
-		dbg(DEBUG_ANY, "can't communicate with unplugged device");
+		gig_dbg(DEBUG_ANY, "can't communicate with unplugged device");
 		goto out;
 	}
 
@@ -516,8 +516,8 @@ static void if_set_termios(struct tty_struct *tty, struct termios *old)
 	iflag = tty->termios->c_iflag;
 	cflag = tty->termios->c_cflag;
 	old_cflag = old ? old->c_cflag : cflag; //FIXME?
-	dbg(DEBUG_IF, "%u: iflag %x cflag %x old %x", cs->minor_index,
+	gig_dbg(DEBUG_IF, "%u: iflag %x cflag %x old %x",
-	    iflag, cflag, old_cflag);
+		cs->minor_index, iflag, cflag, old_cflag);
 
 	/* get a local copy of the current port settings */
 	control_state = cs->control_state;
@@ -535,7 +535,8 @@ static void if_set_termios(struct tty_struct *tty, struct termios *old)
 		/* don't set RTS if using hardware flow control */
 		if (!(old_cflag & CRTSCTS))
 			new_state |= TIOCM_RTS;
-		dbg(DEBUG_IF, "%u: from B0 - set DTR%s", cs->minor_index,
+		gig_dbg(DEBUG_IF, "%u: from B0 - set DTR%s",
+			cs->minor_index,
 			(new_state & TIOCM_RTS) ? " only" : "/RTS");
 		cs->ops->set_modem_ctrl(cs, control_state, new_state);
 		control_state = new_state;
@@ -545,7 +546,7 @@ static void if_set_termios(struct tty_struct *tty, struct termios *old)
 
 	if ((cflag & CBAUD) == B0) {
 		/* Drop RTS and DTR */
-		dbg(DEBUG_IF, "%u: to B0 - drop DTR/RTS", cs->minor_index);
+		gig_dbg(DEBUG_IF, "%u: to B0 - drop DTR/RTS", cs->minor_index);
 		new_state = control_state & ~(TIOCM_DTR | TIOCM_RTS);
 		cs->ops->set_modem_ctrl(cs, control_state, new_state);
 		control_state = new_state;
@@ -565,14 +566,16 @@ static void if_set_termios(struct tty_struct *tty, struct termios *old)
 	 * Just do what we have seen with SniffUSB on Win98.
 	 */
 	/* Drop DTR/RTS if no flow control otherwise assert */
-	dbg(DEBUG_IF, "%u: control_state %x", cs->minor_index, control_state);
+	gig_dbg(DEBUG_IF, "%u: control_state %x",
+		cs->minor_index, control_state);
 	new_state = control_state;
 	if ((iflag & IXOFF) || (iflag & IXON) || (cflag & CRTSCTS))
 		new_state |= TIOCM_DTR | TIOCM_RTS;
 	else
 		new_state &= ~(TIOCM_DTR | TIOCM_RTS);
 	if (new_state != control_state) {
-		dbg(DEBUG_IF, "%u: new_state %x", cs->minor_index, new_state);
+		gig_dbg(DEBUG_IF, "%u: new_state %x",
+			cs->minor_index, new_state);
 		gigaset_set_modem_ctrl(cs, control_state, new_state);
 		control_state = new_state;
 	}
@@ -598,7 +601,7 @@ static void if_wake(unsigned long data)
 
 	if ((tty->flags & (1 << TTY_DO_WRITE_WAKEUP)) &&
 	    tty->ldisc.write_wakeup) {
-		dbg(DEBUG_IF, "write wakeup call");
+		gig_dbg(DEBUG_IF, "write wakeup call");
 		tty->ldisc.write_wakeup(tty);
 	}
 
@@ -640,7 +643,7 @@ void gigaset_if_receive(struct cardstate *cs,
 
 	spin_lock_irqsave(&cs->lock, flags);
 	if ((tty = cs->tty) == NULL)
-		dbg(DEBUG_ANY, "receive on closed device");
+		gig_dbg(DEBUG_ANY, "receive on closed device");
 	else {
 		tty_buffer_request_room(tty, len);
 		tty_insert_flip_string(tty, buffer, len);
@@ -694,7 +697,7 @@ void gigaset_if_initdriver(struct gigaset_driver *drv, const char *procname,
 		warn("failed to register tty driver (error %d)", ret);
 		goto error;
 	}
-	dbg(DEBUG_IF, "tty driver initialized");
+	gig_dbg(DEBUG_IF, "tty driver initialized");
 	drv->have_tty = 1;
 	return;
 

drivers/isdn/gigaset/isocdata.c

@@ -83,12 +83,12 @@ static inline int isowbuf_startwrite(struct isowbuf_t *iwb)
 {
 	if (!atomic_dec_and_test(&iwb->writesem)) {
 		atomic_inc(&iwb->writesem);
-		dbg(DEBUG_ISO,
+		gig_dbg(DEBUG_ISO, "%s: couldn't acquire iso write semaphore",
-		    "%s: couldn't acquire iso write semaphore", __func__);
+			__func__);
 		return 0;
 	}
 #ifdef CONFIG_GIGASET_DEBUG
-	dbg(DEBUG_ISO,
+	gig_dbg(DEBUG_ISO,
 		"%s: acquired iso write semaphore, data[write]=%02x, nbits=%d",
 		__func__, iwb->data[atomic_read(&iwb->write)], iwb->wbits);
 #endif
@@ -143,7 +143,7 @@ static inline void isowbuf_putflag(struct isowbuf_t *iwb)
 	/* recover the idle flag byte */
 	write = atomic_read(&iwb->write);
 	iwb->idle = iwb->data[write];
-	dbg(DEBUG_ISO, "idle fill byte %02x", iwb->idle);
+	gig_dbg(DEBUG_ISO, "idle fill byte %02x", iwb->idle);
 	/* mask extraneous bits in buffer */
 	iwb->data[write] &= (1 << iwb->wbits) - 1;
 }
@@ -162,15 +162,14 @@ int gigaset_isowbuf_getbytes(struct isowbuf_t *iwb, int size)
 	read = atomic_read(&iwb->nextread);
 	write = atomic_read(&iwb->write);
 	if (likely(read == write)) {
-		//dbg(DEBUG_STREAM, "%s: send buffer empty", __func__);
 		/* return idle frame */
 		return read < BAS_OUTBUFPAD ?
 			BAS_OUTBUFSIZE : read - BAS_OUTBUFPAD;
 	}
 
 	limit = read + size;
-	dbg(DEBUG_STREAM,
+	gig_dbg(DEBUG_STREAM, "%s: read=%d write=%d limit=%d",
-	    "%s: read=%d write=%d limit=%d", __func__, read, write, limit);
+		__func__, read, write, limit);
 #ifdef CONFIG_GIGASET_DEBUG
 	if (unlikely(size < 0 || size > BAS_OUTBUFPAD)) {
 		err("invalid size %d", size);
@@ -195,7 +194,7 @@ int gigaset_isowbuf_getbytes(struct isowbuf_t *iwb, int size)
 				pbyte = iwb->data[write]; /* save
 							     partial byte */
 				limit = write + BAS_OUTBUFPAD;
-				dbg(DEBUG_STREAM,
+				gig_dbg(DEBUG_STREAM,
 					"%s: filling %d->%d with %02x",
 					__func__, write, limit, iwb->idle);
 				if (write + BAS_OUTBUFPAD < BAS_OUTBUFSIZE)
@@ -208,7 +207,8 @@ int gigaset_isowbuf_getbytes(struct isowbuf_t *iwb, int size)
 					       - write);
 					limit = 0;
 				}
-				dbg(DEBUG_STREAM, "%s: restoring %02x at %d",
+				gig_dbg(DEBUG_STREAM,
+					"%s: restoring %02x at %d",
 					__func__, pbyte, limit);
 				iwb->data[limit] = pbyte; /* restore
 							     partial byte */
@@ -252,7 +252,7 @@ static inline void dump_bytes(enum debuglevel level, const char *tag,
 	while (count-- > 0) {
 		if (i > sizeof(dbgline) - 4) {
 			dbgline[i] = '\0';
-			dbg(level, "%s:%s", tag, dbgline);
+			gig_dbg(level, "%s:%s", tag, dbgline);
 			i = 0;
 		}
 		c = *bytes++;
@@ -262,7 +262,7 @@ static inline void dump_bytes(enum debuglevel level, const char *tag,
 		dbgline[i++] = hexdigit[c & 0x0f];
 	}
 	dbgline[i] = '\0';
-	dbg(level, "%s:%s", tag, dbgline);
+	gig_dbg(level, "%s:%s", tag, dbgline);
 #endif
 }
 
@@ -429,7 +429,7 @@ static inline int hdlc_buildframe(struct isowbuf_t *iwb,
 
 	if (isowbuf_freebytes(iwb) < count + count / 5 + 6 ||
 	    !isowbuf_startwrite(iwb)) {
-		dbg(DEBUG_ISO, "%s: %d bytes free -> -EAGAIN",
+		gig_dbg(DEBUG_ISO, "%s: %d bytes free -> -EAGAIN",
 			__func__, isowbuf_freebytes(iwb));
 		return -EAGAIN;
 	}
@@ -482,11 +482,11 @@ static inline int trans_buildframe(struct isowbuf_t *iwb,
 
 	if (isowbuf_freebytes(iwb) < count ||
 	    !isowbuf_startwrite(iwb)) {
-		dbg(DEBUG_ISO, "can't put %d bytes", count);
+		gig_dbg(DEBUG_ISO, "can't put %d bytes", count);
 		return -EAGAIN;
 	}
 
-	dbg(DEBUG_STREAM, "put %d bytes", count);
+	gig_dbg(DEBUG_STREAM, "put %d bytes", count);
 	write = atomic_read(&iwb->write);
 	do {
 		c = gigaset_invtab[*in++];
@@ -506,12 +506,12 @@ int gigaset_isoc_buildframe(struct bc_state *bcs, unsigned char *in, int len)
 	switch (bcs->proto2) {
 	case ISDN_PROTO_L2_HDLC:
 		result = hdlc_buildframe(bcs->hw.bas->isooutbuf, in, len);
-		dbg(DEBUG_ISO, "%s: %d bytes HDLC -> %d",
+		gig_dbg(DEBUG_ISO, "%s: %d bytes HDLC -> %d",
 			__func__, len, result);
 		break;
 	default:			/* assume transparent */
 		result = trans_buildframe(bcs->hw.bas->isooutbuf, in, len);
-		dbg(DEBUG_ISO, "%s: %d bytes trans -> %d",
+		gig_dbg(DEBUG_ISO, "%s: %d bytes trans -> %d",
 			__func__, len, result);
 	}
 	return result;
@@ -528,7 +528,7 @@ static inline void hdlc_putbyte(unsigned char c, struct bc_state *bcs)
 		return;
 	}
 	if (unlikely(bcs->skb->len == SBUFSIZE)) {
-		warn("received oversized packet discarded");
+		dev_warn(bcs->cs->dev, "received oversized packet discarded\n");
 		bcs->hw.bas->giants++;
 		dev_kfree_skb_any(bcs->skb);
 		bcs->skb = NULL;
@@ -549,7 +549,7 @@ static inline void hdlc_flush(struct bc_state *bcs)
 		if ((bcs->skb = dev_alloc_skb(SBUFSIZE + HW_HDR_LEN)) != NULL)
 			skb_reserve(bcs->skb, HW_HDR_LEN);
 		else
-			err("could not allocate skb");
+			dev_err(bcs->cs->dev, "could not allocate skb\n");
 	}
 
 	/* reset packet state */
@@ -571,21 +571,23 @@ static inline void hdlc_done(struct bc_state *bcs)
 
 	if ((procskb = bcs->skb) == NULL) {
 		/* previous error */
-		dbg(DEBUG_ISO, "%s: skb=NULL", __func__);
+		gig_dbg(DEBUG_ISO, "%s: skb=NULL", __func__);
 		gigaset_rcv_error(NULL, bcs->cs, bcs);
 	} else if (procskb->len < 2) {
-		notice("received short frame (%d octets)", procskb->len);
+		dev_notice(bcs->cs->dev, "received short frame (%d octets)\n",
+			   procskb->len);
 		bcs->hw.bas->runts++;
 		gigaset_rcv_error(procskb, bcs->cs, bcs);
 	} else if (bcs->fcs != PPP_GOODFCS) {
-		notice("frame check error (0x%04x)", bcs->fcs);
+		dev_notice(bcs->cs->dev, "frame check error (0x%04x)\n",
+			   bcs->fcs);
 		bcs->hw.bas->fcserrs++;
 		gigaset_rcv_error(procskb, bcs->cs, bcs);
 	} else {
 		procskb->len -= 2;		/* subtract FCS */
 		procskb->tail -= 2;
-		dbg(DEBUG_ISO,
+		gig_dbg(DEBUG_ISO, "%s: good frame (%d octets)",
-		    "%s: good frame (%d octets)", __func__, procskb->len);
+			__func__, procskb->len);
 		dump_bytes(DEBUG_STREAM,
 			   "rcv data", procskb->data, procskb->len);
 		bcs->hw.bas->goodbytes += procskb->len;
@@ -595,7 +597,7 @@ static inline void hdlc_done(struct bc_state *bcs)
 	if ((bcs->skb = dev_alloc_skb(SBUFSIZE + HW_HDR_LEN)) != NULL)
 		skb_reserve(bcs->skb, HW_HDR_LEN);
 	else
-		err("could not allocate skb");
+		dev_err(bcs->cs->dev, "could not allocate skb\n");
 	bcs->fcs = PPP_INITFCS;
 }
 
@@ -610,14 +612,14 @@ static inline void hdlc_frag(struct bc_state *bcs, unsigned inbits)
 		return;
 	}
 
-	notice("received partial byte (%d bits)", inbits);
+	dev_notice(bcs->cs->dev, "received partial byte (%d bits)\n", inbits);
 	bcs->hw.bas->alignerrs++;
 	gigaset_rcv_error(bcs->skb, bcs->cs, bcs);
 
 	if ((bcs->skb = dev_alloc_skb(SBUFSIZE + HW_HDR_LEN)) != NULL)
 		skb_reserve(bcs->skb, HW_HDR_LEN);
 	else
-		err("could not allocate skb");
+		dev_err(bcs->cs->dev, "could not allocate skb\n");
 	bcs->fcs = PPP_INITFCS;
 }
 
@@ -870,7 +872,7 @@ static inline void trans_receive(unsigned char *src, unsigned count,
 	if (unlikely((skb = bcs->skb) == NULL)) {
 		bcs->skb = skb = dev_alloc_skb(SBUFSIZE + HW_HDR_LEN);
 		if (!skb) {
-			err("could not allocate skb");
+			dev_err(bcs->cs->dev, "could not allocate skb\n");
 			return;
 		}
 		skb_reserve(skb, HW_HDR_LEN);
@@ -888,7 +890,8 @@ static inline void trans_receive(unsigned char *src, unsigned count,
 			gigaset_rcv_skb(skb, bcs->cs, bcs);
 			bcs->skb = skb = dev_alloc_skb(SBUFSIZE + HW_HDR_LEN);
 			if (!skb) {
-				err("could not allocate skb");
+				dev_err(bcs->cs->dev,
+					"could not allocate skb\n");
 				return;
 			}
 			skb_reserve(bcs->skb, HW_HDR_LEN);
@@ -921,7 +924,7 @@ static void cmd_loop(unsigned char *src, int numbytes, struct inbuf_t *inbuf)
 		case '\r':
 		case '\n':
 			/* end of line */
-			dbg(DEBUG_TRANSCMD, "%s: End of Command (%d Bytes)",
+			gig_dbg(DEBUG_TRANSCMD, "%s: End of Command (%d Bytes)",
 				__func__, cbytes);
 			cs->cbytes = cbytes;
 			gigaset_handle_modem_response(cs);
@@ -932,7 +935,7 @@ static void cmd_loop(unsigned char *src, int numbytes, struct inbuf_t *inbuf)
 			if (cbytes < MAX_RESP_SIZE - 1)
 				cbytes++;
 			else
-				warn("response too large");
+				dev_warn(cs->dev, "response too large\n");
 		}
 	}
 
@@ -951,12 +954,12 @@ void gigaset_isoc_input(struct inbuf_t *inbuf)
 
 	head = atomic_read(&inbuf->head);
 	while (head != (tail = atomic_read(&inbuf->tail))) {
-		dbg(DEBUG_INTR, "buffer state: %u -> %u", head, tail);
+		gig_dbg(DEBUG_INTR, "buffer state: %u -> %u", head, tail);
 		if (head > tail)
 			tail = RBUFSIZE;
 		src = inbuf->data + head;
 		numbytes = tail - head;
-		dbg(DEBUG_INTR, "processing %u bytes", numbytes);
+		gig_dbg(DEBUG_INTR, "processing %u bytes", numbytes);
 
 		if (atomic_read(&cs->mstate) == MS_LOCKED) {
 			gigaset_dbg_buffer(DEBUG_LOCKCMD, "received response",
@@ -971,7 +974,7 @@ void gigaset_isoc_input(struct inbuf_t *inbuf)
 		head += numbytes;
 		if (head == RBUFSIZE)
 			head = 0;
-		dbg(DEBUG_INTR, "setting head to %u", head);
+		gig_dbg(DEBUG_INTR, "setting head to %u", head);
 		atomic_set(&inbuf->head, head);
 	}
 }
@@ -999,8 +1002,8 @@ int gigaset_isoc_send_skb(struct bc_state *bcs, struct sk_buff *skb)
 	len = skb->len;
 
 	skb_queue_tail(&bcs->squeue, skb);
-	dbg(DEBUG_ISO,
+	gig_dbg(DEBUG_ISO, "%s: skb queued, qlen=%d",
-	    "%s: skb queued, qlen=%d", __func__, skb_queue_len(&bcs->squeue));
+		__func__, skb_queue_len(&bcs->squeue));
 
 	/* tasklet submits URB if necessary */
 	tasklet_schedule(&bcs->hw.bas->sent_tasklet);

drivers/isdn/gigaset/proc.c

@@ -50,7 +50,7 @@ static ssize_t set_cidmode(struct device *dev, struct device_attribute *attr,
 		return -ENOMEM;
 	}
 
-	dbg(DEBUG_CMD, "scheduling PROC_CIDMODE");
+	gig_dbg(DEBUG_CMD, "scheduling PROC_CIDMODE");
 	gigaset_schedule_event(cs);
 
 	wait_event(cs->waitqueue, !cs->waiting);
@@ -65,7 +65,7 @@ static DEVICE_ATTR(cidmode, S_IRUGO|S_IWUSR, show_cidmode, set_cidmode);
 /* free sysfs for device */
 void gigaset_free_dev_sysfs(struct usb_interface *interface)
 {
-	dbg(DEBUG_INIT, "removing sysfs entries");
+	gig_dbg(DEBUG_INIT, "removing sysfs entries");
 	device_remove_file(&interface->dev, &dev_attr_cidmode);
 }
 EXPORT_SYMBOL_GPL(gigaset_free_dev_sysfs);
@@ -73,7 +73,7 @@ EXPORT_SYMBOL_GPL(gigaset_free_dev_sysfs);
 /* initialize sysfs for device */
 void gigaset_init_dev_sysfs(struct usb_interface *interface)
 {
-	dbg(DEBUG_INIT, "setting up sysfs");
+	gig_dbg(DEBUG_INIT, "setting up sysfs");
 	device_create_file(&interface->dev, &dev_attr_cidmode);
 }
 EXPORT_SYMBOL_GPL(gigaset_init_dev_sysfs);

drivers/isdn/gigaset/usb-gigaset.c

@@ -126,17 +126,17 @@ struct usb_cardstate {
 	atomic_t		busy;		/* bulk output in progress */
 
 	/* Output buffer */
-	unsigned char		*bulk_out_buffer;	/* send buffer */
+	unsigned char		*bulk_out_buffer;
-	int			bulk_out_size;		/* send buffer size */
+	int			bulk_out_size;
-	__u8			bulk_out_endpointAddr;	/* bulk out endpoint */
+	__u8			bulk_out_endpointAddr;
-	struct urb		*bulk_out_urb;		/* bulk out urb */
+	struct urb		*bulk_out_urb;
 
 	/* Input buffer */
-	int			rcvbuf_size;		/* rcv buffer */
+	int			rcvbuf_size;
-	struct urb		*read_urb;		/* rcv buffer size */
+	struct urb		*read_urb;
-	__u8			int_in_endpointAddr;    /* int in endpoint */
+	__u8			int_in_endpointAddr;
 
-	char			bchars[6];		/* request 0x19 */
+	char			bchars[6];		/* for request 0x19 */
 };
 
 struct usb_bc_state {};
@@ -151,16 +151,16 @@ static inline unsigned tiocm_to_gigaset(unsigned state)
 static int gigaset_set_modem_ctrl(struct cardstate *cs, unsigned old_state,
 				  unsigned new_state)
 {
+	struct usb_device *udev = cs->hw.usb->udev;
 	unsigned mask, val;
 	int r;
 
 	mask = tiocm_to_gigaset(old_state ^ new_state);
 	val = tiocm_to_gigaset(new_state);
 
-	dbg(DEBUG_USBREQ, "set flags 0x%02x with mask 0x%02x", val, mask);
+	gig_dbg(DEBUG_USBREQ, "set flags 0x%02x with mask 0x%02x", val, mask);
 	// don't use this in an interrupt/BH
-	r = usb_control_msg(cs->hw.usb->udev,
+	r = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 7, 0x41,
-	                    usb_sndctrlpipe(cs->hw.usb->udev, 0), 7, 0x41,
 			    (val & 0xff) | ((mask & 0xff) << 8), 0,
 			    NULL, 0, 2000 /* timeout? */);
 	if (r < 0)
@@ -171,30 +171,29 @@ static int gigaset_set_modem_ctrl(struct cardstate *cs, unsigned old_state,
 
 static int set_value(struct cardstate *cs, u8 req, u16 val)
 {
+	struct usb_device *udev = cs->hw.usb->udev;
 	int r, r2;
 
-	dbg(DEBUG_USBREQ, "request %02x (%04x)", (unsigned)req, (unsigned)val);
+	gig_dbg(DEBUG_USBREQ, "request %02x (%04x)",
-	r = usb_control_msg(cs->hw.usb->udev,
+		(unsigned)req, (unsigned)val);
-	                    usb_sndctrlpipe(cs->hw.usb->udev, 0), 0x12, 0x41,
+	r = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x12, 0x41,
-	                    0xf /*?*/, 0,
+			    0xf /*?*/, 0, NULL, 0, 2000 /*?*/);
-	                    NULL, 0, 2000 /*?*/); /* no idea, what this does */
+			    /* no idea what this does */
 	if (r < 0) {
-		err("error %d on request 0x12", -r);
+		dev_err(&udev->dev, "error %d on request 0x12\n", -r);
 		return r;
 	}
 
-	r = usb_control_msg(cs->hw.usb->udev,
+	r = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), req, 0x41,
-	                    usb_sndctrlpipe(cs->hw.usb->udev, 0), req, 0x41,
+			    val, 0, NULL, 0, 2000 /*?*/);
-	                    val, 0,
-	                    NULL, 0, 2000 /*?*/);
 	if (r < 0)
-		err("error %d on request 0x%02x", -r, (unsigned)req);
+		dev_err(&udev->dev, "error %d on request 0x%02x\n",
+			-r, (unsigned)req);
 
-	r2 = usb_control_msg(cs->hw.usb->udev,
+	r2 = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x19, 0x41,
-	                     usb_sndctrlpipe(cs->hw.usb->udev, 0), 0x19, 0x41,
 			     0, 0, cs->hw.usb->bchars, 6, 2000 /*?*/);
 	if (r2 < 0)
-		err("error %d on request 0x19", -r2);
+		dev_err(&udev->dev, "error %d on request 0x19\n", -r2);
 
 	return r < 0 ? r : (r2 < 0 ? r2 : 0);
 }
@@ -222,8 +221,8 @@ static int gigaset_baud_rate(struct cardstate *cs, unsigned cflag)
 	case B115200: rate =  115200; break;
 	default:
 		rate =  9600;
-		err("unsupported baudrate request 0x%x,"
+		dev_err(cs->dev, "unsupported baudrate request 0x%x,"
-		    " using default of B9600", cflag);
+			" using default of B9600\n", cflag);
 	}
 
 	val = 0x383fff / rate + 1;
@@ -252,7 +251,7 @@ static int gigaset_set_line_ctrl(struct cardstate *cs, unsigned cflag)
 	case CS8:
 		val |= 8 << 8; break;
 	default:
-		err("CSIZE was not CS5-CS8, using default of 8");
+		dev_err(cs->dev, "CSIZE was not CS5-CS8, using default of 8\n");
 		val |= 8 << 8;
 		break;
 	}
@@ -317,10 +316,10 @@ static void gigaset_modem_fill(unsigned long data)
 	unsigned long flags;
 	int again;
 
-	dbg(DEBUG_OUTPUT, "modem_fill");
+	gig_dbg(DEBUG_OUTPUT, "modem_fill");
 
 	if (atomic_read(&cs->hw.usb->busy)) {
-		dbg(DEBUG_OUTPUT, "modem_fill: busy");
+		gig_dbg(DEBUG_OUTPUT, "modem_fill: busy");
 		return;
 	}
 
@@ -331,9 +330,9 @@ static void gigaset_modem_fill(unsigned long data)
 			cb = cs->cmdbuf;
 			spin_unlock_irqrestore(&cs->cmdlock, flags);
 			if (cb) { /* commands to send? */
-				dbg(DEBUG_OUTPUT, "modem_fill: cb");
+				gig_dbg(DEBUG_OUTPUT, "modem_fill: cb");
 				if (send_cb(cs, cb) < 0) {
-					dbg(DEBUG_OUTPUT,
+					gig_dbg(DEBUG_OUTPUT,
 						"modem_fill: send_cb failed");
 					again = 1; /* no callback will be
 						      called! */
@@ -341,16 +340,16 @@ static void gigaset_modem_fill(unsigned long data)
 			} else { /* skbs to send? */
 				bcs->tx_skb = skb_dequeue(&bcs->squeue);
 				if (bcs->tx_skb)
-					dbg(DEBUG_INTR,
+					gig_dbg(DEBUG_INTR,
 						"Dequeued skb (Adr: %lx)!",
 						(unsigned long) bcs->tx_skb);
 			}
 		}
 
 		if (bcs->tx_skb) {
-			dbg(DEBUG_OUTPUT, "modem_fill: tx_skb");
+			gig_dbg(DEBUG_OUTPUT, "modem_fill: tx_skb");
 			if (write_modem(cs) < 0) {
-				dbg(DEBUG_OUTPUT,
+				gig_dbg(DEBUG_OUTPUT,
 					"modem_fill: write_modem failed");
 				// FIXME should we tell the LL?
 				again = 1; /* no callback will be called! */
@@ -377,12 +376,11 @@ static void gigaset_read_int_callback(struct urb *urb, struct pt_regs *regs)
 	inbuf = (struct inbuf_t *) urb->context;
 	IFNULLRET(inbuf);
 	cs = inbuf->cs;
-	IFNULLGOTO(cs, exit);
+	IFNULLRET(cs);
-	IFNULLGOTO(cardstate, exit);
 
 	if (!atomic_read(&cs->connected)) {
 		err("%s: disconnected", __func__);
-		goto exit;
+		return;
 	}
 
 	if (!urb->status) {
@@ -391,29 +389,31 @@ static void gigaset_read_int_callback(struct urb *urb, struct pt_regs *regs)
 		if (numbytes) {
 			src = inbuf->rcvbuf;
 			if (unlikely(*src))
-				warn("%s: There was no leading 0, but 0x%02x!",
+				dev_warn(cs->dev,
+				    "%s: There was no leading 0, but 0x%02x!\n",
 					 __func__, (unsigned) *src);
 			++src; /* skip leading 0x00 */
 			--numbytes;
 			if (gigaset_fill_inbuf(inbuf, src, numbytes)) {
-				dbg(DEBUG_INTR, "%s-->BH", __func__);
+				gig_dbg(DEBUG_INTR, "%s-->BH", __func__);
 				gigaset_schedule_event(inbuf->cs);
 			}
 		} else
-			dbg(DEBUG_INTR, "Received zero block length");
+			gig_dbg(DEBUG_INTR, "Received zero block length");
 		resubmit = 1;
 	} else {
 		/* The urb might have been killed. */
-		dbg(DEBUG_ANY, "%s - nonzero read bulk status received: %d",
+		gig_dbg(DEBUG_ANY, "%s - nonzero read bulk status received: %d",
 			__func__, urb->status);
 		if (urb->status != -ENOENT) /* not killed */
 			resubmit = 1;
 	}
-exit:
+
 	if (resubmit) {
 		r = usb_submit_urb(urb, SLAB_ATOMIC);
 		if (r)
-			err("error %d when resubmitting urb.", -r);
+			dev_err(cs->dev, "error %d when resubmitting urb.\n",
+				-r);
 	}
 }
 
@@ -431,9 +431,10 @@ static void gigaset_write_bulk_callback(struct urb *urb, struct pt_regs *regs)
 	}
 #endif
 	if (urb->status)
-		err("bulk transfer failed (status %d)", -urb->status);
+		dev_err(cs->dev, "bulk transfer failed (status %d)\n",
+			-urb->status);
 		/* That's all we can do. Communication problems
-		   are handeled by timeouts or network protocols */
+		   are handled by timeouts or network protocols. */
 
 	atomic_set(&cs->hw.usb->busy, 0);
 	tasklet_schedule(&cs->write_tasklet);
@@ -453,7 +454,7 @@ static int send_cb(struct cardstate *cs, struct cmdbuf_t *cb)
 
 			spin_lock_irqsave(&cs->cmdlock, flags);
 			cs->cmdbytes -= cs->curlen;
-			dbg(DEBUG_OUTPUT, "send_cb: sent %u bytes, %u left",
+			gig_dbg(DEBUG_OUTPUT, "send_cb: sent %u bytes, %u left",
 				cs->curlen, cs->cmdbytes);
 			cs->cmdbuf = cb = cb->next;
 			if (cb) {
@@ -480,12 +481,13 @@ static int send_cb(struct cardstate *cs, struct cmdbuf_t *cb)
 			cb->offset += count;
 			cb->len -= count;
 			atomic_set(&ucs->busy, 1);
-			dbg(DEBUG_OUTPUT, "send_cb: send %d bytes", count);
+			gig_dbg(DEBUG_OUTPUT, "send_cb: send %d bytes", count);
 
 			status = usb_submit_urb(ucs->bulk_out_urb, SLAB_ATOMIC);
 			if (status) {
 				atomic_set(&ucs->busy, 0);
-				err("could not submit urb (error %d).",
+				dev_err(cs->dev,
+					"could not submit urb (error %d)\n",
 					-status);
 				cb->len = 0; /* skip urb => remove cb+wakeup
 						in next loop cycle */
@@ -516,7 +518,7 @@ static int gigaset_write_cmd(struct cardstate *cs, const unsigned char *buf,
 		return 0;
 
 	if (!(cb = kmalloc(sizeof(struct cmdbuf_t) + len, GFP_ATOMIC))) {
-		err("%s: out of memory", __func__);
+		dev_err(cs->dev, "%s: out of memory\n", __func__);
 		return -ENOMEM;
 	}
 
@@ -562,10 +564,11 @@ static int gigaset_chars_in_buffer(struct cardstate *cs)
 static int gigaset_brkchars(struct cardstate *cs, const unsigned char buf[6])
 {
 #ifdef CONFIG_GIGASET_UNDOCREQ
+	struct usb_device *udev = cs->hw.usb->udev;
+
 	gigaset_dbg_buffer(DEBUG_USBREQ, "brkchars", 6, buf, 0);
 	memcpy(cs->hw.usb->bchars, buf, 6);
-	return usb_control_msg(cs->hw.usb->udev,
+	return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x19, 0x41,
-	                       usb_sndctrlpipe(cs->hw.usb->udev, 0), 0x19, 0x41,
 			       0, 0, &buf, 6, 2000);
 #else
 	return -EINVAL;
@@ -636,7 +639,7 @@ static int write_modem(struct cardstate *cs)
 
 	IFNULLRETVAL(bcs->tx_skb, -EINVAL);
 
-	dbg(DEBUG_WRITE, "len: %d...", bcs->tx_skb->len);
+	gig_dbg(DEBUG_WRITE, "len: %d...", bcs->tx_skb->len);
 
 	ret = -ENODEV;
 	IFNULLGOTO(ucs->bulk_out_buffer, error);
@@ -662,19 +665,19 @@ static int write_modem(struct cardstate *cs)
 			  ucs->bulk_out_buffer, count,
 			  gigaset_write_bulk_callback, cs);
 	atomic_set(&ucs->busy, 1);
-	dbg(DEBUG_OUTPUT, "write_modem: send %d bytes", count);
+	gig_dbg(DEBUG_OUTPUT, "write_modem: send %d bytes", count);
 
 	ret = usb_submit_urb(ucs->bulk_out_urb, SLAB_ATOMIC);
 	if (ret) {
-		err("could not submit urb (error %d).", -ret);
+		dev_err(cs->dev, "could not submit urb (error %d)\n", -ret);
 		atomic_set(&ucs->busy, 0);
 	}
 	if (!bcs->tx_skb->len) {
 		/* skb sent completely */
 		gigaset_skb_sent(bcs, bcs->tx_skb); //FIXME also, when ret<0?
 
-		dbg(DEBUG_INTR,
+		gig_dbg(DEBUG_INTR, "kfree skb (Adr: %lx)!",
-		    "kfree skb (Adr: %lx)!", (unsigned long) bcs->tx_skb);
+			(unsigned long) bcs->tx_skb);
 		dev_kfree_skb_any(bcs->tx_skb);
 		bcs->tx_skb = NULL;
 	}
@@ -700,7 +703,8 @@ static int gigaset_probe(struct usb_interface *interface,
 	int buffer_size;
 	int alt;
 
-	info("%s: Check if device matches .. (Vendor: 0x%x, Product: 0x%x)",
+	gig_dbg(DEBUG_ANY,
+		"%s: Check if device matches .. (Vendor: 0x%x, Product: 0x%x)",
 		__func__, le16_to_cpu(udev->descriptor.idVendor),
 		le16_to_cpu(udev->descriptor.idProduct));
 
@@ -717,7 +721,7 @@ static int gigaset_probe(struct usb_interface *interface,
 	ifnum = hostif->desc.bInterfaceNumber; // FIXME ?
 
 	if (alt != 0 || ifnum != 0) {
-		warn("ifnum %d, alt %d", ifnum, alt);
+		dev_warn(&udev->dev, "ifnum %d, alt %d\n", ifnum, alt);
 		return -ENODEV;
 	}
 
@@ -725,20 +729,27 @@ static int gigaset_probe(struct usb_interface *interface,
 	 *
 	 */
 	if (hostif->desc.bInterfaceClass != 255) {
-		info("%s: Device matched, but iface_desc[%d]->bInterfaceClass==%d !",
+		dev_info(&udev->dev,
+		"%s: Device matched but iface_desc[%d]->bInterfaceClass==%d!\n",
 			 __func__, ifnum, hostif->desc.bInterfaceClass);
 		return -ENODEV;
 	}
 
-	info("%s: Device matched ... !", __func__);
+	dev_info(&udev->dev, "%s: Device matched ... !\n", __func__);
 
 	cs = gigaset_getunassignedcs(driver);
 	if (!cs) {
-		warn("No free cardstate!");
+		dev_warn(&udev->dev, "no free cardstate\n");
 		return -ENODEV;
 	}
 	ucs = cs->hw.usb;
 
+	/* save off device structure ptrs for later use */
+	usb_get_dev(udev);
+	ucs->udev = udev;
+	ucs->interface = interface;
+	cs->dev = &udev->dev;
+
 	endpoint = &hostif->endpoint[0].desc;
 
 	buffer_size = le16_to_cpu(endpoint->wMaxPacketSize);
@@ -746,14 +757,14 @@ static int gigaset_probe(struct usb_interface *interface,
 	ucs->bulk_out_endpointAddr = endpoint->bEndpointAddress;
 	ucs->bulk_out_buffer = kmalloc(buffer_size, GFP_KERNEL);
 	if (!ucs->bulk_out_buffer) {
-		err("Couldn't allocate bulk_out_buffer");
+		dev_err(cs->dev, "Couldn't allocate bulk_out_buffer\n");
 		retval = -ENOMEM;
 		goto error;
 	}
 
 	ucs->bulk_out_urb = usb_alloc_urb(0, SLAB_KERNEL);
 	if (!ucs->bulk_out_urb) {
-		err("Couldn't allocate bulk_out_buffer");
+		dev_err(cs->dev, "Couldn't allocate bulk_out_urb\n");
 		retval = -ENOMEM;
 		goto error;
 	}
@@ -761,12 +772,10 @@ static int gigaset_probe(struct usb_interface *interface,
 	endpoint = &hostif->endpoint[1].desc;
 
 	atomic_set(&ucs->busy, 0);
-	ucs->udev = udev;
-	ucs->interface = interface;
 
 	ucs->read_urb = usb_alloc_urb(0, SLAB_KERNEL);
 	if (!ucs->read_urb) {
-		err("No free urbs available");
+		dev_err(cs->dev, "No free urbs available\n");
 		retval = -ENOMEM;
 		goto error;
 	}
@@ -775,7 +784,7 @@ static int gigaset_probe(struct usb_interface *interface,
 	ucs->int_in_endpointAddr = endpoint->bEndpointAddress;
 	cs->inbuf[0].rcvbuf = kmalloc(buffer_size, GFP_KERNEL);
 	if (!cs->inbuf[0].rcvbuf) {
-		err("Couldn't allocate rcvbuf");
+		dev_err(cs->dev, "Couldn't allocate rcvbuf\n");
 		retval = -ENOMEM;
 		goto error;
 	}
@@ -789,7 +798,7 @@ static int gigaset_probe(struct usb_interface *interface,
 
 	retval = usb_submit_urb(ucs->read_urb, SLAB_KERNEL);
 	if (retval) {
-		err("Could not submit URB!");
+		dev_err(cs->dev, "Could not submit URB (error %d)\n", -retval);
 		goto error;
 	}
 
@@ -820,6 +829,9 @@ error:
 		usb_free_urb(ucs->read_urb);
 	ucs->read_urb = ucs->bulk_out_urb = NULL;
 	cs->inbuf[0].rcvbuf = ucs->bulk_out_buffer = NULL;
+	usb_put_dev(ucs->udev);
+	ucs->udev = NULL;
+	ucs->interface = NULL;
 	gigaset_unassign(cs);
 	return retval;
 }
@@ -840,7 +852,6 @@ static void gigaset_disconnect(struct usb_interface *interface)
 	usb_set_intfdata(interface, NULL);
 	ucs = cs->hw.usb;
 	usb_kill_urb(ucs->read_urb);
-	//info("GigaSet USB device #%d will be disconnected", minor);
 
 	gigaset_stop(cs);