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[PATCH] v4l: 802: replaced kmalloc kfree with usb buffer alloc usb buffer free to get

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- Replaced kmalloc/kfree with usb_buffer_alloc/usb_buffer_free to get

Signed-off-by: Markus Rechberger <mrechberger@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Markus Rechberger 2005-11-08 21:37:46 -08:00 • committed by Linus Torvalds
parent f2421ca338
commit 02f7427333
1 changed files with 25 additions and 25 deletions
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50
drivers/media/video/em28xx/em28xx-core.c
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@ -714,11 +714,12 @@ void em2820_uninit_isoc(struct em2820 *dev)
for (i = 0; i < EM2820_NUM_BUFS; i++) { for (i = 0; i < EM2820_NUM_BUFS; i++) {
if (dev->urb[i]) { if (dev->urb[i]) {
usb_kill_urb(dev->urb[i]); usb_kill_urb(dev->urb[i]);
if (dev->transfer_buffer[i]){
usb_buffer_free(dev->udev,(EM2820_NUM_PACKETS*dev->max_pkt_size),dev->transfer_buffer[i],dev->urb[i]->transfer_dma);
}
usb_free_urb(dev->urb[i]); usb_free_urb(dev->urb[i]);
} }
dev->urb[i] = NULL; dev->urb[i] = NULL;
if (dev->transfer_buffer[i])
kfree(dev->transfer_buffer[i]);
dev->transfer_buffer[i] = NULL; dev->transfer_buffer[i] = NULL;
} }
em2820_capture_start(dev, 0); em2820_capture_start(dev, 0);
@ -743,7 +744,13 @@ int em2820_init_isoc(struct em2820 *dev)
struct urb *urb; struct urb *urb;
int j, k; int j, k;
/* allocate transfer buffer */ /* allocate transfer buffer */
dev->transfer_buffer[i] = kmalloc(sb_size, GFP_KERNEL); urb = usb_alloc_urb(EM2820_NUM_PACKETS, GFP_KERNEL);
if (!urb){
em2820_errdev("cannot alloc urb %i\n", i);
em2820_uninit_isoc(dev);
return -ENOMEM;
}
dev->transfer_buffer[i] = usb_buffer_alloc(dev->udev, sb_size, GFP_KERNEL,&urb->transfer_dma);
if (!dev->transfer_buffer[i]) { if (!dev->transfer_buffer[i]) {
em2820_errdev em2820_errdev
("unable to allocate %i bytes for transfer buffer %i\n", ("unable to allocate %i bytes for transfer buffer %i\n",
@ -752,29 +759,22 @@ int em2820_init_isoc(struct em2820 *dev)
return -ENOMEM; return -ENOMEM;
} }
memset(dev->transfer_buffer[i], 0, sb_size); memset(dev->transfer_buffer[i], 0, sb_size);
urb = usb_alloc_urb(EM2820_NUM_PACKETS, GFP_KERNEL); urb->dev = dev->udev;
if (urb) { urb->context = dev;
urb->dev = dev->udev; urb->pipe = usb_rcvisocpipe(dev->udev, 0x82);
urb->context = dev; urb->transfer_flags = URB_ISO_ASAP;
urb->pipe = usb_rcvisocpipe(dev->udev, 0x82); urb->interval = 1;
urb->transfer_flags = URB_ISO_ASAP; urb->transfer_buffer = dev->transfer_buffer[i];
urb->interval = 1; urb->complete = em2820_isocIrq;
urb->transfer_buffer = dev->transfer_buffer[i]; urb->number_of_packets = EM2820_NUM_PACKETS;
urb->complete = em2820_isocIrq; urb->transfer_buffer_length = sb_size;
urb->number_of_packets = EM2820_NUM_PACKETS; for (j = k = 0; j < EM2820_NUM_PACKETS;
urb->transfer_buffer_length = sb_size; j++, k += dev->max_pkt_size) {
for (j = k = 0; j < EM2820_NUM_PACKETS; urb->iso_frame_desc[j].offset = k;
j++, k += dev->max_pkt_size) { urb->iso_frame_desc[j].length =
urb->iso_frame_desc[j].offset = k; dev->max_pkt_size;
urb->iso_frame_desc[j].length =
dev->max_pkt_size;
}
dev->urb[i] = urb;
} else {
em2820_errdev("cannot alloc urb %i\n", i);
em2820_uninit_isoc(dev);
return -ENOMEM;
} }
dev->urb[i] = urb;
} }
/* submit urbs */ /* submit urbs */