Commit graph

63280 commits

Author SHA1 Message Date
Sergey Senozhatsky
00b64f2aa5 cxgb3: fixing gcc 4.4 compiler warning: suggest parentheses around operand of ‘!’
Trivial: fixing gcc 4.4 compiler warning:
drivers/net/cxgb3/t3_hw.c: In function ‘t3_prep_adapter’:
drivers/net/cxgb3/t3_hw.c:3782: warning: suggest parentheses around operand of ‘!’ or change ‘|’ to ‘||’ or ‘!’ to ‘~’

Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@mail.by>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-01 09:15:09 -07:00
Ben Dooks
090f848da0 [ARM] S3C: Add UDIVSLOT support for newer UARTS
Add support for the UDIVSLOT register on the newer UART blocks
which gives the capability of 1/16ths adjustment to the baud rate.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-05-01 12:28:16 +01:00
Keith Packard
79f11c19a3 drm/i915: save/restore fence registers across suspend/resume
This makes software fallbacks not do tiling wrong on i965 and later after
resume. It also should fix 945 performance reduction after resume which
would have disabled tiling without causing any visible effect.

Signed-off-by: Keith Packard <keithp@keithp.com>
[anholt: Fixed up the 915 case to not save/restore the new regs]
Signed-off-by: Eric Anholt <eric@anholt.net>
2009-04-30 16:04:40 -07:00
Keith Packard
049ef7e40f drm/i915: x86 always has writeq. Add I915_READ64 for symmetry.
i386 has inline code for writeq and readq, so just use those instead of ugly
macros which evaluate arguments multiple times.

Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
2009-04-30 15:51:02 -07:00
Borislav Petkov
96c1674397 ide-cd: fix REQ_QUIET tests in cdrom_decode_status
Original patch (dfa4411cc3) was buggy.
This is a more proper fix which introduces blk_rq_quiet() macro
alleviating the need for dumb, too short caching variables.

Thanks to Helge Deller and Bart for debugging this.

Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Reported-and-tested-by: Helge Deller <deller@gmx.de>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2009-04-30 18:24:34 +02:00
Linus Torvalds
93acda847f Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6:
  V4L/DVB (11652): au0828: fix kernel oops regression on USB disconnect.
  V4L/DVB (11626): cx23885: Two fixes for DViCO FusionHDTV DVB-T Dual Express
  V4L/DVB (11612): mx3_camera: Fix compilation with CONFIG_PM
  V4L/DVB (11570): patch: s2255drv: fix race condition on set mode
  V4L/DVB (11568): cx18: Fix the handling of i2c bus registration error
  V4L/DVB (11561a): move media after i2c
  V4L/DVB (11516): drivers/media/video/saa5246a.c: fix use-after-free
  V4L/DVB (11515): drivers/media/video/saa5249.c: fix use-after-free and leak
  V4L/DVB (11494a): cx231xx Kconfig fixes
  V4L/DVB (11494): cx18: Send correct input routing value to external audio multiplexers
2009-04-29 21:25:39 -07:00
Lennert Buytenhek
93af7aca44 mv643xx_eth: 64bit mib counter read fix
On several mv643xx_eth hardware versions, the two 64bit mib counters
for 'good octets received' and 'good octets sent' are actually 32bit
counters, and reading from the upper half of the register has the same
effect as reading from the lower half of the register: an atomic
read-and-clear of the entire 32bit counter value.  This can under heavy
traffic occasionally lead to small numbers being added to the upper
half of the 64bit mib counter even though no 32bit wrap has occured.

Since we poll the mib counters at least every 30 seconds anyway, we
might as well just skip the reads of the upper halves of the hardware
counters without breaking the stats, which this patch does.

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Cc: stable@kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-29 17:24:19 -07:00
Lennert Buytenhek
1319ebadf1 mv643xx_eth: OOM handling fixes
Currently, when OOM occurs during rx ring refill, mv643xx_eth will get
into an infinite loop, due to the refill function setting the OOM bit
but not clearing the 'rx refill needed' bit for this queue, while the
calling function (the NAPI poll handler) will call the refill function
in a loop until the 'rx refill needed' bit goes off, without checking
the OOM bit.

This patch fixes this by checking the OOM bit in the NAPI poll handler
before attempting to do rx refill.  This means that once OOM occurs,
we won't try to do any memory allocations again until the next invocation
of the poll handler.

While we're at it, change the OOM flag to be a single bit instead of
one bit per receive queue since OOM is a system state rather than a
per-queue state, and cancel the OOM timer on entry to the NAPI poll
handler if it's running to prevent it from firing when we've already
come out of OOM.

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Cc: stable@kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-29 17:24:17 -07:00
David S. Miller
ddc9f824b0 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 2009-04-29 15:52:56 -07:00
Steve Wise
ec6995ddaa RDMA/cxgb3: Don't complete flushed send work requests twice
When the SQ is flushed, mark the flushed entries as not signaled so
the poll logic doesn't re-insert the CQ entry thinking its an out of
order completion.

The bug can cause the NFS/RDMA server to crash due to processing the
same completed work request twice.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-04-29 15:15:59 -07:00
Devin Heitmueller
fe78a49c8a V4L/DVB (11652): au0828: fix kernel oops regression on USB disconnect.
A regression was introduced in hg changeset 33810c734a0d, which resulted in
a kernel panic whenever the device was disconnected from USB.  The call to
4l2_device_register() was overwriting the pointer for usb_set_intfdata(), so
when au0828_usb_disconnect() was called, the usb_get_intfdata() returned a
pointer to the v4l2_device instead of the au0828_dev structure.

Signed-off-by: Devin Heitmueller <dheitmueller@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-04-29 16:02:51 -03:00
Christopher Pascoe
d4dc673da9 V4L/DVB (11626): cx23885: Two fixes for DViCO FusionHDTV DVB-T Dual Express
Two fixes for DViCO FusionHDTV DVB-T Dual Express:

 * Reset correct tuner when reinitializing xc3028.
 * Disable the I2C gate control to avoid locking up the I2C bus.

Tested-by: John Knops <jknops@australiaonline.net.au>
Reviewed-by: Steven Toth <stoth@linuxtv.org>
Signed-off-by: Christopher Pascoe <linuxdvb@itee.uq.edu.au>
Signed-off-by: Devin Heitmueller <dheitmueller@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-04-29 16:00:38 -03:00
Sascha Hauer
e39c904797 V4L/DVB (11612): mx3_camera: Fix compilation with CONFIG_PM
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-04-29 15:59:24 -03:00
Dean Anderson
9d63cec168 V4L/DVB (11570): patch: s2255drv: fix race condition on set mode
set_modeready flag must be set before command sent to USB in
s2255_write_config.

Signed-off-by: Dean Anderson <dean@sensoray.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-04-29 15:41:14 -03:00
Jean Delvare
272aa3966b V4L/DVB (11568): cx18: Fix the handling of i2c bus registration error
* Return actual error values as returned by the i2c subsystem, rather
  than 0 or 1.
* If the registration of the second bus fails, unregister the first one
  before exiting, otherwise we are leaking resources.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Andy Walls <awalls@radix.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-04-29 15:41:13 -03:00
Guennadi Liakhovetski
a357482a1e V4L/DVB (11561a): move media after i2c
Currently drivers/media drivers are linked very early - directly after
base, block, misc, and mfd and before ata, scsi, ide, input, firewire,
usb, and i2c. This breaks static build of video4linux drivers, that use
generic CPU i2c adapter drivers and the v4l2-subdev subsystem, because
during video4linux probing the v4l2-subdev core requires a struct
i2c_adapter context, which cannot be satisfied before the i2c subsystem is
initialised. Moving drivers/media after drivers/i2c fixes this problem.

The best way to trigger action is by submitting a patch:-) So, let's see
what comes out of it - on the one hand I don't see any reason why media
has to be linked this early, and nobody was able to give me one yesterday
as this problem has been discussed on linux-media, OTOH, maybe indeed it
would be better to move i2c the whole way up above media, but that'd be
much bigger of a change, I think.
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To unsubscribe from this list: send the line "unsubscribe linux-media" in
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Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-04-29 15:41:13 -03:00
Dan Carpenter
9401608bb3 V4L/DVB (11516): drivers/media/video/saa5246a.c: fix use-after-free
I lowered the kfree(t) down a couple lines and removed the superflous
"t->vdev = NULL;"

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-04-29 15:41:12 -03:00
Dan Carpenter
5b83cfa985 V4L/DVB (11515): drivers/media/video/saa5249.c: fix use-after-free and leak
I moved the kfree() down a couple lines.  t->vdev is going to be in freed
memory so there is no point setting it to NULL.  I added a kfree(t) on a

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-04-29 15:41:11 -03:00
Mauro Carvalho Chehab
3964b58a25 V4L/DVB (11494a): cx231xx Kconfig fixes
selecting ALSA module breaks if !SND. Just remove select.

While here, let's fix the whitespacing at the Kconfig.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-04-29 15:41:11 -03:00
Andy Walls
92ab9baee3 V4L/DVB (11494): cx18: Send correct input routing value to external audio multiplexers
A late v4l2_subdev framework change accidentally sent the audio input
routing value to the external multiplexer, instead of the muxer input routing
value to the external multiplexer.  This change corrects that error.

Signed-off-by: Andy Walls <awalls@radix.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-04-29 15:41:10 -03:00
Oliver Neukum
89092ddd7a HID: fix possible deadlock in usbhid_close()
This patch switches usbhid_close() from flush_scheduled_work() to canceling
the outstanding work. This fixes a possible deadlock due to work taking
the mutex usbhid_close() holds. Lockdep reported the problem.

Signed-off-by: Oliver Neukum <oliver@neukum.org>

--
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-04-29 17:25:01 +02:00
Linus Torvalds
3dacbdad24 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (24 commits)
  e100: do not go D3 in shutdown unless system is powering off
  netfilter: revised locking for x_tables
  Bluetooth: Fix connection establishment with low security requirement
  Bluetooth: Add different pairing timeout for Legacy Pairing
  Bluetooth: Ensure that HCI sysfs add/del is preempt safe
  net: Avoid extra wakeups of threads blocked in wait_for_packet()
  net: Fix typo in net_device_ops description.
  ipv4: Limit size of route cache hash table
  Add reference to CAPI 2.0 standard
  Documentation/isdn/INTERFACE.CAPI
  update Documentation/isdn/00-INDEX
  ixgbe: Fix WoL functionality for 82599 KX4 devices
  veth: prevent oops caused by netdev destructor
  xfrm: wrong hash value for temporary SA
  forcedeth: tx timeout fix
  net: Fix LL_MAX_HEADER for CONFIG_TR_MODULE
  mlx4_en: Handle page allocation failure during receive
  mlx4_en: Fix cleanup flow on cq activation
  vlan: update vlan carrier state for admin up/down
  netfilter: xt_recent: fix stack overread in compat code
  ...
2009-04-29 07:55:45 -07:00
Ulrich Dangel
2feaace40e HID: Fix the support for apple mini aluminium keyboard
Quirks for the apple mini keyboard was recently added but keyboard
was recognized as a powerbook keyboard. Adjusted boundary to the lowest
product id for the apple mini keyboard to get the right translation.

Signed-off-by: Ulrich Dangel <uli@spamt.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-04-29 11:55:18 +02:00
Steven A. Falco
3f33b0aaac mtd: Bug in m25p80.c during whole-chip erase
There is a logic error in "whole chip erase" for the m25p80 family.  If
the whole device is successfully erased, erase_chip() will return 0, and
the code will fall through to the "else" clause, and do sector-by-sector
erase in addition to the whole-chip erase.  This patch corrects that.

Also, the MAX_READY_WAIT_COUNT is insufficient for an m25p16 connected
to a 400 MHz powerpc.  Increasing it allows me to successfully program
the device on my board.

Signed-off-by: Steven A. Falco <sfalco@harris.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-04-29 06:49:28 +01:00
Thadeu Lima de Souza Cascardo
ac7c992cac e100: do not go D3 in shutdown unless system is powering off
After experimenting with kexec with the last merges after 2.6.29, I've
had some problems when probing e100.  It would not read the eeprom.  After
some bisects, I realized this has been like that since forever (at least
2.6.18).  The problem is that shutdown is doing the same thing that
suspend does and puts the device in D3 state.  I couldn't find a way to
get the device back to a sane state in the probe function.  So, based on
some similar patches from Rafael J. Wysocki for e1000, e1000e, and ixgbe,
I wrote this one for e100.

Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com>
Acked-by: "Rafael J. Wysocki" <rjw@sisk.pl>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-28 22:42:39 -07:00
Linus Torvalds
56a50adda4 Merge branch 'drm-intel-next' of git://git.kernel.org/pub/scm/linux/kernel/git/anholt/drm-intel
* 'drm-intel-next' of git://git.kernel.org/pub/scm/linux/kernel/git/anholt/drm-intel:
  drm/i915: fix up error path leak in i915_cmdbuffer
  drm/i915: fix unpaired i915 device mutex on entervt failure.
  drm/i915: add support for G41 chipset
  drm/i915: Enable ASLE if present
  drm/i915: Unregister ACPI video driver when exiting
  drm/i915: Register ACPI video even when not modesetting
  drm/i915: fix transition to I915_TILING_NONE
  drm/i915: Don't let an oops get triggered from irq_emit without dma init.
  drm/i915: allow tiled front buffers on 965+
2009-04-28 17:21:20 -07:00
Linus Torvalds
c2e2ceeae4 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (21 commits)
  RDMA/nes: Update iw_nes version
  RDMA/nes: Fix error path in nes_accept()
  RDMA/nes: Fix hang issues for large cluster dynamic connections
  RDMA/nes: Increase rexmit timeout interval
  RDMA/nes: Check for sequence number wrap-around
  RDMA/nes: Do not set apbvt entry for loopback
  RDMA/nes: Fix unused variable compile warning when INFINIBAND_NES_DEBUG=n
  RDMA/nes: Fix fw_ver in /sys
  RDMA/nes: Set trace length to 1 inch for SFP_D
  RDMA/nes: Enable repause timer for port 1
  RDMA/nes: Correct CDR loop filter setting for port 1
  RDMA/nes: Modify thermo mitigation to flip SerDes1 ref clk to internal
  RDMA/nes: Fix resource issues in nes_create_cq() and nes_destroy_cq()
  RDMA/nes: Remove root_256()'s unused pbl_count_256 parameter
  mlx4_core: Fix memory leak in mlx4_enable_msi_x()
  IB/mthca: Fix timeout for INIT_HCA and a few other commands
  RDMA/cxgb3: Don't zero QP attrs when moving to IDLE
  RDMA/nes: Fix bugs in nes_reg_phys_mr()
  RDMA/nes: Fix compiler warning at nes_verbs.c:1955
  IPoIB: Disable NAPI while CQ is being drained
  ...
2009-04-28 17:21:07 -07:00
Linus Torvalds
2d04f6b9bc Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block
* 'for-linus' of git://git.kernel.dk/linux-2.6-block:
  bio: fix memcpy corruption in bio_copy_user_iov()
  hd: fix locking
  mg_disk: fix CONFIG_LBD=y warning
  mg_disk: fix locking
2009-04-28 16:06:48 -07:00
Roland Dreier
9308f96c79 Merge branches 'cxgb3', 'ipoib', 'mthca', 'mlx4' and 'nes' into for-linus 2009-04-28 16:01:31 -07:00
Bob Copeland
b7fcb5c4a4 ath5k: fix buffer overrun in rate debug code
char bname[5] is too small for the string "X GHz" when the null
terminator is taken into account.  Thus, turning on rate debugging
can crash unless we have lucky stack alignment.

Cc: stable@kernel.org
Reported-by: Paride Legovini <legovini@spiro.fisica.unipd.it>
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-04-28 15:59:48 -04:00
Johannes Berg
74aa9be0ea iwlwifi: notify on scan completion even when shutting down
Under certain circumstances iwlwifi can get stuck and will no
longer accept scan requests, because the core code (cfg80211)
thinks that it's still processing one. This fixes one of the
points where it can happen, but I've still seen it (although
only with my radio-off-when-idle patch).

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-04-28 15:59:48 -04:00
Jussi Kivilinna
e805e4d0b5 rndis_wlan: fix initialization order for workqueue&workers
rndis_wext_link_change() might be called from rndis_command() at
initialization stage and priv->workqueue/priv->work have not been
initialized yet. This causes invalid opcode at rndis_wext_bind on
some brands of bcm4320.

Fix by initializing workqueue/workers in rndis_wext_bind() before
rndis_command is used.

This bug has existed since 2.6.25, reported at:
	http://bugzilla.kernel.org/show_bug.cgi?id=12794

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-04-28 15:59:48 -04:00
Stephen Rothwell
6269b73156 wireless: remove unneeded EXPORT_SYMBOL the tickles a powerpc compiler bug
drivers/net/wireless/iwlwifi/iwl3945-base.c:1415: error: __ksymtab_iwl3945_rx_queue_reset causes a section type conflict

I am pretty sure that this is a compiler bug, so not to worry.  However,
as far as I can see, iwl-3945.o (the only user) and iwl3945-base.o are
always linked into the same module, so the EXPORT_SYMBOL (which causes
the problem) should not be needed.  Correct?

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-04-28 15:59:48 -04:00
Tejun Heo
0191944282 hd: fix locking
hd dance around local irq and HD_IRQ enable without achieving much.
It ends up transferring data from irq handler with both local irq and
HD_IRQ disabled.  The only place it actually does something is while
transferring the first block of a request which it does with HD_IRQ
disabled but local irq enabled.

Unfortunately, the dancing is horribly broken from locking POV.  IRQ
and timeout handlers access block queue without grabbing the queue
lock and running the driver in SMP configuration crashes the whole
machine pretty quickly.

Remove meaningless irq enable/disable dancing and add proper locking
in issue, irq and timeout paths.

Signed-off-by: Tejun Heo <tj@kernel.org>
2009-04-28 20:24:20 +02:00
Bartlomiej Zolnierkiewicz
0d9f346fb0 mg_disk: fix CONFIG_LBD=y warning
drivers/block/mg_disk.c: In function ‘mg_dump_status’:
drivers/block/mg_disk.c:265: warning: format ‘%ld’ expects type ‘long int’, but
argument 2 has type ‘sector_t’

[ Impact: kill build warning ]

Cc: unsik Kim <donari75@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
2009-04-28 20:24:20 +02:00
Tejun Heo
39f36b47ca mg_disk: fix locking
IRQ and timeout handlers call functions which expect locked queue lock
without locking it.  Fix it.

While at it, convert 0s used as null pointer constant to NULLs.

[ Impact: fix locking, cleanup ]

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: unsik Kim <donari75@gmail.com>
2009-04-28 20:24:19 +02:00
Mark Brown
3e59091828 regulator: Fix default constraints for fixed voltage regulators
Default voltage constraints were being provided for fixed voltage
regulator where board constraints were not provided but these constraints
used INT_MIN as the default minimum voltage which is not a valid value
since it is less than zero. Use 1uV instead.

Also set the default values we set in the constraints themselves since
otherwise the max_uV constraint we determine will not be stored in the
actual constraint strucutre and will therefore not be used.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-04-28 18:58:08 +01:00
Philipp Zabel
030853b7ab regulator/bq24022: fix bug in is_enabled function
This seems to be fallout from last October's regulator core rework.
It got noticed only because of recent regulator framework changes.

Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-04-28 18:58:08 +01:00
Mike Rapoport
aa61d558f0 regulator/virtual: fix strings compare predicates
Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-04-28 18:58:07 +01:00
Paul Walmsley
53032dafc6 regulator core: fix double-free in regulator_register() error path
During regulator registration, any error after device_register() will
cause a double-free on the struct regulator_dev 'rdev'.  The bug is in
drivers/regulator/core.c:regulator_register():

...
scrub:
	device_unregister(&rdev->dev);
clean:
	kfree(rdev);                           <---
	rdev = ERR_PTR(ret);
	goto out;
...

device_unregister() calls regulator_dev_release() which frees rdev.  The
subsequent kfree corrupts memory and causes some OMAP3 systems to oops on
boot in regulator_get().

Applies against 2.6.30-rc3.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-04-28 18:58:07 +01:00
Diego Liziero
cd78dfc6c6 drivers/regulator: fix when type is different from REGULATOR_VOLTAGE or REGULATOR_CURRENT
When regulator_desc->type is something different from REGULATOR_VOLTAGE or REGULATOR_CURRENT
the if should probably return ERR_PTR(-EINVAL)

The semantic patch that makes this change is as follows:
(http://www.emn.fr/x-info/coccinelle/)

@@ expression E; constant C; @@
(
- !E == C
+ E != C
)

Signed-off-by: Diego Liziero <diegoliz@gmail.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-04-28 18:58:07 +01:00
Dan Carpenter
036de8efae unreachable code in drms_uA_update()
I removed the extra semi-colon and indented the return statement.

The unreachable code was found by smatch (http://repo.or.cz/w/smatch.git).
The patch was compile tested.

regards,
dan carpenter

Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-04-28 18:58:06 +01:00
Henrik Rydberg
5e5ee686e3 Input: add detailed multi-touch finger data report protocol
In order to utilize the full power of the new multi-touch devices, a
way to report detailed finger data to user space is needed. This patch
adds a multi-touch (MT) protocol which allows drivers to report details
for an arbitrary number of fingers.

The driver sends a SYN_MT_REPORT event via the input_mt_sync() function
when a complete finger has been reported.

In order to stay compatible with existing applications, the data
reported in a finger packet must not be recognized as single-touch
events. In addition, all finger data must bypass input filtering,
since subsequent events of the same type refer to different fingers.

A set of ABS_MT events with the desired properties are defined. The
events are divided into categories, to allow for partial implementation.
The minimum set consists of ABS_MT_TOUCH_MAJOR, ABS_MT_POSITION_X and
ABS_MT_POSITION_Y, which allows for multiple fingers to be tracked.
If the device supports it, the ABS_MT_WIDTH_MAJOR may be used to provide
the size of the approaching finger. Anisotropy and direction may be
specified with ABS_MT_TOUCH_MINOR, ABS_MT_WIDTH_MINOR and
ABS_MT_ORIENTATION. Devices with more granular information may specify
general shapes as blobs, i.e., as a sequence of rectangular shapes
grouped together by a ABS_MT_BLOB_ID. Finally, the ABS_MT_TOOL_TYPE
may be used to specify whether the touching tool is a finger or a pen.

Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2009-04-28 09:36:24 -07:00
Henrik Rydberg
61994a61bc Input: allow certain EV_ABS events to bypass all filtering
With the upcoming multi-touch interface as an example, there is
a need to make certain that all reported events actually get passed
to the event handler. This patch equips the input core with the
ability to bypass all filtering for certain EV_ABS events.

Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2009-04-28 09:36:16 -07:00
Henrik Rydberg
5340219317 Input: bcm5974 - augment debug information
Add more button and finger data to the debug output.

Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2009-04-28 09:36:01 -07:00
Henrik Rydberg
158e928741 Input: bcm5974 - Add support for the Macbook 5 (Unibody)
This patch adds support for the new unibody Macbook, with physically
integrated button and trackpad. Since the integrated button changes
the logic for touch-and-click, a device capability bit mask is now
reported in input_id.version, which can be picked up by user space
via a EVIOCGID call.

Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Tested-by: David M. Lary <dmlary@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2009-04-28 09:35:52 -07:00
Henrik Rydberg
6916d97f6e Input: bcm5974 - add quad-finger tapping
The integrated button on the new unibody Macbooks presents a need to
report explicit four-finger actions. Evidently, the finger pressing
the button is also touching the trackpad, so in order to fully support
three-finger actions, the driver must be able to report four-finger
actions. This patch adds a new button, BTN_TOOL_QUADTAP, which
achieves this.

Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2009-04-28 09:35:12 -07:00
Henrik Rydberg
9894cf0ff5 Input: bcm5974 - prepare for a new trackpad header type
The new unibody Macbooks are equipped with an integrated button and
trackpad. The package header of the trackpad interface has changed to
also contain information about the integrated button.  This patch
performs the necessary preparations to allow for the new package
header.

Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2009-04-28 09:35:03 -07:00
Bob Copeland
0385c5ee3c Input: appletouch - fix DMA to/from stack buffer
CONFIG_DMA_API_DEBUG spotted an instance of appletouch using
an array on the stack as a DMA buffer for certain hardware.
Change it to use a kmalloc()ed buffer instead.

Signed-off-by: Bob Copeland <me@bobcopeland.com>
Reviewed-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2009-04-28 09:34:13 -07:00
Ping Cheng
384318ecd2 Input: wacom - fix TabletPC touch bug
This patch fixed a bug that was introduced in kernel 2.6.28 for
TabletPC touch data. The wacom_parse_hid routine in wacom_sys.c
should always return 0 even when usb_control_msg got an error.

Signed-off-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2009-04-28 09:32:38 -07:00