Commit Graph

245198 Commits

Author SHA1 Message Date
Mikulas Patocka bc8728ee56 HPFS: Implement fsync for hpfs
Implement fsync for hpfs.

Signed-off-by: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-05-09 09:04:24 -07:00
Mikulas Patocka dab4c82a6e HPFS: Fix a bug that filesystem was not marked dirty when remounting it
Fix a bug that filesystem was not marked dirty when remounting it

Signed-off-by: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-05-09 09:04:24 -07:00
Mikulas Patocka 48f10e8ce7 HPFS: Restrict uid and gid to 16-bit values
Restrict uid and gid to 16-bit values.

HPFS stores only 2 bytes in the EAs.

Signed-off-by: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-05-09 09:04:24 -07:00
Mikulas Patocka f73976818a HPFS: When marking or clearing the dirty bit, sync the filesystem
When marking or clearing the dirty bit, sync the filesystem

Signed-off-by: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-05-09 09:04:24 -07:00
Mikulas Patocka d878597c2c HPFS: Use types with defined width
Use types with defined width

Signed-off-by: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-05-09 09:04:23 -07:00
Mikulas Patocka e5d6a7dd5e HPFS: Remove mark_inode_dirty
Remove mark_inode_dirty

HPFS doesn't use kernel's dirty inode indicator anyway because
writing an inode requires directory's mutex.

Signed-off-by: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-05-09 09:04:23 -07:00
Mikulas Patocka 0fe105aa29 HPFS: Remove CR/LF conversion option
Remove CR/LF conversion option

It is unused anyway. It was used on 2.2 kernels or so.

Signed-off-by: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-05-09 09:04:23 -07:00
Mikulas Patocka 7d23ce36e3 HPFS: Remove remaining locks
Remove remaining locks

Because of a new global per-fs lock, no other locks are needed

Signed-off-by: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-05-09 09:04:23 -07:00
Mikulas Patocka 7dd29d8d86 HPFS: Introduce a global mutex and lock it on every callback from VFS.
Introduce a global mutex and lock it on every callback from VFS.

Performance doesn't matter, reviewing the whole code for locking correctness
would be too complicated, so simply lock it all.

Signed-off-by: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-05-09 09:04:23 -07:00
Mikulas Patocka 637b424bf8 HPFS: Make HPFS compile on preempt and SMP
Make HPFS compile on preempt and SMP

Signed-off-by: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-05-09 09:04:23 -07:00
Matthew Garrett 14fdb15241 eeepc-laptop: Use ACPI handle to identify rfkill port
The ACPI notification we get from rfkill events on these machines gives
us all the information we need to identify the port that's changed. Do
so rather than assuming that it's always bus 1.

Signed-off-by: Matthew Garrett <mjg@redhat.com>
2011-05-09 10:48:47 -04:00
Mattia Dongili 62d2f23e8b [PATCH] sony-laptop: limit brightness range to DSDT provided ones
The new style brightness control provides an operating range of 9 values
(seems consistent over a large number of models sharing the same
brightness control methods).
Read and use the minimum and maximum values to limit the backlight
interface between those boundaries.

Signed-off-by: Mattia Dongili <malattia@linux.it>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
2011-05-09 10:28:47 -04:00
Mattia Dongili 6192fa7109 sony-laptop: report failures on setting LCD brightness
Check if we were successful in setting the requested brightness and
report failure in that case.

Signed-off-by: Mattia Dongili <malattia@linux.it>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
2011-05-09 10:26:44 -04:00
Manoj Iyer 9fbdaeb4f4 thinkpad-acpi: module autoloading for newer Lenovo ThinkPads.
The newer Lenovo ThinkPads have HKEY HID of LEN0068 instead
of IBM0068. Added new HID so that thinkpad_acpi module will
auto load on these newer Lenovo ThinkPads.

Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Cc: stable@kernel.org
Signed-off-by: Manoj Iyer <manoj.iyer@canonical.com>
Signed-off-by: Andy Lutomirski <luto@mit.edu>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
2011-05-09 10:25:13 -04:00
Alex Deucher 4f87af4610 drm/radeon/kms: add pci id to acer travelmate quirk for 5730
Fixes:
https://bugzilla.kernel.org/show_bug.cgi?id=34082

Reported by: Sampo Laaksonen <zhamahn@gmail.com>
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-05-09 09:16:38 +10:00
Ilija Hadzic 45e5f6a2ee drm/radeon: fix order of doing things in radeon_crtc_cursor_set
if object pin or object lookup in radeon_cursor_set fail, the function
 could leave inconsistent mouse width and hight values in radeon_crtc
 fixed by moving cursor width and height assignments after all
 checks have passed

Signed-off-by: Ilija Hadzic <ihadzic@research.bell-labs.com>
Reviewed-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-05-09 09:16:05 +10:00
Daniel Vetter 2bbd449255 drm: mm: fix debug output
The looping helper didn't do anything due to a superficial
semicolon. Furthermore one of the two dump functions suffered
from copy&paste fail.

While staring at the code I've also noticed that the replace
helper (currently unused) is a bit broken.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-05-09 09:14:45 +10:00
Dave Airlie ff68146acb Merge remote branch 'nouveau/drm-nouveau-fixes' of /ssd/git/drm-nouveau-next into drm-fixes
* 'nouveau/drm-nouveau-fixes' of /ssd/git/drm-nouveau-next:
  drm/nouveau: Fix a crash at card takedown for NV40 and older cards
2011-05-09 09:14:38 +10:00
Alex Deucher 58e73811c8 drm/radeon/kms: ATPX switcheroo fixes
When we switch the display mux, also switch
the i2c mux.  Also use the start and finish
methods to let the sbios know that the switch
is happening.

Should fix:
https://bugs.freedesktop.org/show_bug.cgi?id=35398

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-05-09 09:14:35 +10:00
stephen hemminger b9f47a3aae tcp_cubic: limit delayed_ack ratio to prevent divide error
TCP Cubic keeps a metric that estimates the amount of delayed
acknowledgements to use in adjusting the window. If an abnormally
large number of packets are acknowledged at once, then the update
could wrap and reach zero. This kind of ACK could only
happen when there was a large window and huge number of
ACK's were lost.

This patch limits the value of delayed ack ratio. The choice of 32
is just a conservative value since normally it should be range of
1 to 4 packets.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-08 15:51:57 -07:00
Ben Hutchings 9c412942a0 ipheth: Properly distinguish length and alignment in URBs and skbs
The USB protocol this driver implements appears to require 2 bytes of
padding in front of each received packet.  This used to be equal to
the value of NET_IP_ALIGN on x86, so the driver abused that constant
and mostly worked, but this is no longer the case.  The driver also
mixed up the URB and packet lengths, resulting in 2 bytes of junk at
the end of the skb.

Introduce a private constant for the 2 bytes of padding; fix this
confusion and check for the under-length case.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-08 15:45:13 -07:00
Jimmy Rentz 7a7b94ad8c drm/nouveau: Fix a crash at card takedown for NV40 and older cards
NV40 and older cards (pre NV50) reserve a vram bo for the vga memory at
card init. This bo is then freed at card shutdown.  The problem is that
the ttm bo vram manager was already freed. So a crash occurs when the
vga bo is freed. The fix is to free the vga bo prior to freeing the ttm
bo vram manager. There might be other solutions but this seemed the
simplest to me.

Signed-off-by: Jimmy Rentz <jb17bsome@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2011-05-09 08:42:49 +10:00
Marek Belisko bf707de21f ASoC: UDA134x: Remove POWER_OFF_ON_STANDBY define.
Define POWER_OFF_ON_STANDBY cause trobles when trying to get some
sound from codec because code for bias setup was not compiled
(define wasn't defined). This define was removed in commit:
cc3202f5 but again introduced by commit: f0fba2ad1 which then
completely break codec functionality so remove it again.

Signed-off-by: Marek Belisko <marek.belisko@open-nandra.com>
Acked-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@kernel.org
2011-05-08 15:27:48 +01:00
Lars-Peter Clausen 8fc63fe941 ASoC: SSM2602: Fix reg_cache_size
reg_cache_size is supposed to be the number of elements in the register cache,
not the size in bytes.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-05-08 14:42:21 +01:00
Lars-Peter Clausen 36c90ab33f ASoC: SSM2602: Fix 'Mic Boost2' control
The 'Mic Boost2' control's shift was off by one and thus was not working.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@kernel.org
2011-05-08 14:42:15 +01:00
Lars-Peter Clausen 04b894553f ASoC: SSM2602: Properly annotate i2c probe and remove functions
Annotate the i2c probe and remove functions with __devinit and __devexit.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-05-08 14:41:34 +01:00
Linus Torvalds 8b061610da Merge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  perf tools: Makefile: Use gcc to determine ARCH
  perf events, x86: Fix Intel Nehalem and Westmere last level cache event definitions
  hw_breakpoints, powerpc: Fix CONFIG_HAVE_HW_BREAKPOINT off-case in ptrace_set_debugreg()
  sh, hw_breakpoints: Fix racy access to ptrace breakpoints
  arm, hw_breakpoints: Fix racy access to ptrace breakpoints
  powerpc, hw_breakpoints: Fix racy access to ptrace breakpoints
  x86, hw_breakpoints: Fix racy access to ptrace breakpoints
  ptrace: Prepare to fix racy accesses on task breakpoints
2011-05-07 13:17:37 -07:00
Lin Ming 174a7b1f96 perf tools: Makefile: Use gcc to determine ARCH
The original Makefile uses "uname -m" to determine ARCH.
This causes problem on x86 when compile perf tool on 32 bit
userspace with a 64 bit kernel.

 bench/../../../arch/x86/lib/memcpy_64.S: Assembler messages:
 bench/../../../arch/x86/lib/memcpy_64.S:28: Error: bad register name `%rdi'

This is because "uname -m" returns x86_64 and memcpy_64.S is
included in 32 bit build.

Reported-by: Riccardo Magliocchetti <riccardo.magliocchetti@gmail.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnaldo Carvalho de Melo <acme@infradead.org>
Link: http://lkml.kernel.org/r/1304743274.3132.17.camel@localhost
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-05-07 11:40:59 +02:00
Russell King 362607df9f Merge first four commits of 'zImage_fixes' of git://git.linaro.org/people/nico/linux into fixes 2011-05-07 08:34:40 +01:00
Nicolas Pitre ea9df3b168 ARM: zImage: the page table memory must be considered before relocation
For correctness, the initial page table located right before the
decompressed kernel should be considered when determining if relocation
is required.

Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Tested-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Tony Lindgren <tony@atomide.com>
2011-05-07 00:07:58 -04:00
Nicolas Pitre adcc25915b ARM: zImage: make sure not to relocate on top of the relocation code
If the zImage load address is slightly below the relocation address,
there is a risk for the copied data to overwrite the copy loop or
cache flush code that the relocation process requires.  Always
bump the relocation address by the size of that code to avoid this
issue.

Noticed by Tony Lindgren <tony@atomide.com>.

While at it, let's start the copy from the restart symbol which makes
the above code size computation possible by the assembler directly
(same sections), given that we don't need to preserve the code before
that point anyway. And therefore we don't need to carry the _start
pointer in r5 anymore.

Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Tested-by: Tony Lindgren <tony@atomide.com>
2011-05-07 00:07:53 -04:00
Tony Lindgren 7c2527f0c4 ARM: zImage: Fix bad SP address after relocating kernel
Otherwise cache_clean_flush can overwrite some of the relocated
area depending on where the kernel image gets loaded. This fixes
booting on n900 after commit 6d7d0ae515
(ARM: 6750/1: improvements to compressed/head.S).

Thanks to Aaro Koskinen <aaro.koskinen@nokia.com> for debugging
the address of the relocated area that gets corrupted, and to
Nicolas Pitre <nicolas.pitre@linaro.org> for the other uncompress
related fixes.

Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
2011-05-06 23:56:43 -04:00
Nicolas Pitre 3bd2cbb955 ARM: zImage: make sure the stack is 64-bit aligned
With ARMv5+ and EABI, the compiler expects a 64-bit aligned stack so
instructions like STRD and LDRD can be used.  Without this, mysterious
boot failures were seen semi randomly with the LZMA decompressor.

While at it, let's align .bss as well.

Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Tested-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Tony Lindgren <tony@atomide.com>
CC: stable@kernel.org
2011-05-06 23:55:49 -04:00
Uwe Kleine-König 156229b352 rtc: mc13xxx: Don't call rtc_device_register while holding lock
Since commit f44f7f9 (RTC: Initialize kernel state from RTC)
rtc_device_register reads the programmed alarm. As reading the alarm
needs to take the mc13xxx lock, release it before calling
rtc_device_register.

This fixes a deadlock during boot:

	INFO: task swapper:1 blocked for more than 120 seconds.
	"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
	swapper         D c02b175c     0     1      0 0x00000000
	[<c02b175c>] (schedule+0x304/0x4f4) from [<c02b25a8>] (__mutex_lock_slowpath+0x7c/0x110)
	[<c02b25a8>] (__mutex_lock_slowpath+0x7c/0x110) from [<c020b4cc>] (mc13xxx_rtc_read_time+0x1c/0x118)
	[<c020b4cc>] (mc13xxx_rtc_read_time+0x1c/0x118) from [<c0208f04>] (__rtc_read_time+0x58/0x5c)
	[<c0208f04>] (__rtc_read_time+0x58/0x5c) from [<c0209508>] (rtc_read_time+0x30/0x48)
	[<c0209508>] (rtc_read_time+0x30/0x48) from [<c0209dd4>] (__rtc_read_alarm+0x1c/0x290)
	[<c0209dd4>] (__rtc_read_alarm+0x1c/0x290) from [<c0208d58>] (rtc_device_register+0x150/0x27c)
	[<c0208d58>] (rtc_device_register+0x150/0x27c) from [<c02b0b74>] (mc13xxx_rtc_probe+0x128/0x17c)
	[<c02b0b74>] (mc13xxx_rtc_probe+0x128/0x17c) from [<c01d5280>] (platform_drv_probe+0x1c/0x24)
	[<c01d5280>] (platform_drv_probe+0x1c/0x24) from [<c01d3e58>] (driver_probe_device+0x80/0x1a8)
	[<c01d3e58>] (driver_probe_device+0x80/0x1a8) from [<c01d400c>] (__driver_attach+0x8c/0x90)
	[<c01d400c>] (__driver_attach+0x8c/0x90) from [<c01d3654>] (bus_for_each_dev+0x60/0x8c)
	[<c01d3654>] (bus_for_each_dev+0x60/0x8c) from [<c01d2f6c>] (bus_add_driver+0x180/0x248)
	[<c01d2f6c>] (bus_add_driver+0x180/0x248) from [<c01d4664>] (driver_register+0x70/0x15c)
	[<c01d4664>] (driver_register+0x70/0x15c) from [<c01d5700>] (platform_driver_probe+0x18/0x98)
	[<c01d5700>] (platform_driver_probe+0x18/0x98) from [<c00273a8>] (do_one_initcall+0x2c/0x168)
	[<c00273a8>] (do_one_initcall+0x2c/0x168) from [<c00083ac>] (kernel_init+0xa0/0x150)
	[<c00083ac>] (kernel_init+0xa0/0x150) from [<c0033ff8>] (kernel_thread_exit+0x0/0x8)

Reported-by: Vagrant Cascadian <vagrant@debian.org>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Closes: http://bugs.debian.org/625804
[Tweaked commit log -jstultz]
Signed-off-by: John Stultz <john.stultz@linaro.org>
2011-05-06 18:02:07 -07:00
John Stultz 130107b270 rtc: rp5c01: Initialize drvdata before registering device
Commit f44f7f96a2 ("RTC: Initialize kernel state from RTC") uncovered
an issue in a number of RTC drivers, where the drivers call
rtc_device_register before initializing the device or platform drvdata.

This frequently results in null pointer dereferences when the
rtc_device_register immediately makes use of the rtc device, calling
rtc_read_alarm.

The solution is to ensure the drvdata is initialized prior to registering
the rtc device.

CC: Wolfram Sang <w.sang@pengutronix.de>
CC: Alessandro Zummo <a.zummo@towertech.it>
CC: Thomas Gleixner <tglx@linutronix.de>
CC: rtc-linux@googlegroups.com
Signed-off-by: John Stultz <john.stultz@linaro.org>
2011-05-06 18:02:05 -07:00
John Stultz 4b3687f9c1 rtc: pcap: Initialize drvdata before registering device
Commit f44f7f96a2 ("RTC: Initialize kernel state from RTC") uncovered
an issue in a number of RTC drivers, where the drivers call
rtc_device_register before initializing the device or platform drvdata.

This frequently results in null pointer dereferences when the
rtc_device_register immediately makes use of the rtc device, calling
rtc_read_alarm.

The solution is to ensure the drvdata is initialized prior to registering
the rtc device.

CC: Wolfram Sang <w.sang@pengutronix.de>
CC: Alessandro Zummo <a.zummo@towertech.it>
CC: Thomas Gleixner <tglx@linutronix.de>
CC: rtc-linux@googlegroups.com
Signed-off-by: John Stultz <john.stultz@linaro.org>
2011-05-06 18:02:04 -07:00
John Stultz 93015236d9 rtc: msm6242: Initialize drvdata before registering device
Commit f44f7f96a2 ("RTC: Initialize kernel state from RTC") uncovered
an issue in a number of RTC drivers, where the drivers call
rtc_device_register before initializing the device or platform drvdata.

This frequently results in null pointer dereferences when the
rtc_device_register immediately makes use of the rtc device, calling
rtc_read_alarm.

The solution is to ensure the drvdata is initialized prior to registering
the rtc device.

CC: Wolfram Sang <w.sang@pengutronix.de>
CC: Alessandro Zummo <a.zummo@towertech.it>
CC: Thomas Gleixner <tglx@linutronix.de>
CC: rtc-linux@googlegroups.com
Signed-off-by: John Stultz <john.stultz@linaro.org>
2011-05-06 18:02:03 -07:00
John Stultz 03cf7c477d rtc: max8998: Initialize drvdata before registering device
Commit f44f7f96a2 ("RTC: Initialize kernel state from RTC") uncovered
an issue in a number of RTC drivers, where the drivers call
rtc_device_register before initializing the device or platform drvdata.

This frequently results in null pointer dereferences when the
rtc_device_register immediately makes use of the rtc device, calling
rtc_read_alarm.

The solution is to ensure the drvdata is initialized prior to registering
the rtc device.

CC: Wolfram Sang <w.sang@pengutronix.de>
CC: Alessandro Zummo <a.zummo@towertech.it>
CC: Thomas Gleixner <tglx@linutronix.de>
CC: rtc-linux@googlegroups.com
Signed-off-by: John Stultz <john.stultz@linaro.org>
2011-05-06 18:02:02 -07:00
John Stultz 2f5c4fe8f9 rtc: max8925: Initialize drvdata before registering device
Commit f44f7f96a2 ("RTC: Initialize kernel state from RTC") uncovered
an issue in a number of RTC drivers, where the drivers call
rtc_device_register before initializing the device or platform drvdata.

This frequently results in null pointer dereferences when the
rtc_device_register immediately makes use of the rtc device, calling
rtc_read_alarm.

The solution is to ensure the drvdata is initialized prior to registering
the rtc device.

CC: Wolfram Sang <w.sang@pengutronix.de>
CC: Alessandro Zummo <a.zummo@towertech.it>
CC: Thomas Gleixner <tglx@linutronix.de>
CC: rtc-linux@googlegroups.com
Signed-off-by: John Stultz <john.stultz@linaro.org>
2011-05-06 18:02:00 -07:00
John Stultz a015dbc110 rtc: m41t80: Initialize clientdata before registering device
Commit f44f7f96a2 ("RTC: Initialize kernel state from RTC") uncovered
an issue in a number of RTC drivers, where the drivers call
rtc_device_register before initializing the clientdata.

This frequently results in null pointer dereferences when the
rtc_device_register immediately makes use of the rtc device, calling
rtc_read_alarm.

The solution is to ensure the clientdata is initialized prior to registering
the rtc device.

CC: Wolfram Sang <w.sang@pengutronix.de>
CC: Alessandro Zummo <a.zummo@towertech.it>
CC: Thomas Gleixner <tglx@linutronix.de>
CC: rtc-linux@googlegroups.com
Signed-off-by: John Stultz <john.stultz@linaro.org>
2011-05-06 18:01:02 -07:00
John Stultz 9a281a677c rtc: ds1286: Initialize drvdata before registering device
Commit f44f7f96a2 ("RTC: Initialize kernel state from RTC") uncovered
an issue in a number of RTC drivers, where the drivers call
rtc_device_register before initializing the device or platform drvdata.

This frequently results in null pointer dereferences when the
rtc_device_register immediately makes use of the rtc device, calling
rtc_read_alarm.

The solution is to ensure the drvdata is initialized prior to registering
the rtc device.

CC: Wolfram Sang <w.sang@pengutronix.de>
CC: Alessandro Zummo <a.zummo@towertech.it>
CC: Thomas Gleixner <tglx@linutronix.de>
CC: rtc-linux@googlegroups.com
Signed-off-by: John Stultz <john.stultz@linaro.org>
2011-05-06 17:42:47 -07:00
Wolfram Sang 92d921c5de rtc: ep93xx: Initialize drvdata before registering device
Commit f44f7f96a2 ("RTC: Initialize kernel state from RTC") uncovered
an issue in a number of RTC drivers, where the drivers call
rtc_device_register before initializing the device or platform drvdata.

This frequently results in null pointer dereferences when the
rtc_device_register immediately makes use of the rtc device, calling
rtc_read_alarm.

The solution is to ensure the drvdata is initialized prior to registering
the rtc device.

CC: Alessandro Zummo <a.zummo@towertech.it>
CC: Thomas Gleixner <tglx@linutronix.de>
CC: rtc-linux@googlegroups.com
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
[Fixed up commit log -jstultz]
Signed-off-by: John Stultz <john.stultz@linaro.org>
2011-05-06 17:42:04 -07:00
Wolfram Sang f4e708ae8e rtc: davinci: Initialize drvdata before registering device
Commit f44f7f96a2 ("RTC: Initialize kernel state from RTC") uncovered
an issue in a number of RTC drivers, where the drivers call
rtc_device_register before initializing the device or platform drvdata.

This frequently results in null pointer dereferences when the
rtc_device_register immediately makes use of the rtc device, calling
rtc_read_alarm.

The solution is to ensure the drvdata is initialized prior to registering
the rtc device.

CC: Alessandro Zummo <a.zummo@towertech.it>
CC: Thomas Gleixner <tglx@linutronix.de>
CC: rtc-linux@googlegroups.com
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
[fixed up commit log -jstultz]
Signed-off-by: John Stultz <john.stultz@linaro.org>
2011-05-06 17:41:06 -07:00
Wolfram Sang 5f54c8a00a rtc: mxc: Initialize drvdata before registering device
Commit f44f7f96a2 ("RTC: Initialize kernel state from RTC") uncovered
an issue in a number of RTC drivers, where the drivers call
rtc_device_register before initializing the device or platform drvdata.

This frequently results in null pointer dereferences when the
rtc_device_register immediately makes use of the rtc device, calling
rtc_read_alarm.

The solution is to ensure the drvdata is initialized prior to registering
the rtc device.

CC: Alessandro Zummo <a.zummo@towertech.it>
CC: Thomas Gleixner <tglx@linutronix.de>
CC: rtc-linux@googlegroups.com
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
[fixed up commit log -jstultz]
Signed-off-by: John Stultz <john.stultz@linaro.org>
2011-05-06 17:40:10 -07:00
Linus Torvalds c2bf807eb3 Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6:
  cifs: handle errors from coalesce_t2
  cifs: refactor mid finding loop in cifs_demultiplex_thread
  cifs: sanitize length checking in coalesce_t2 (try #3)
  cifs: check for bytes_remaining going to zero in CIFS_SessSetup
  cifs: change bleft in decode_unicode_ssetup back to signed type
2011-05-06 15:32:41 -07:00
Arjan van de Ven a3a4a5acd3 Regression: partial revert "tracing: Remove lock_depth from event entry"
This partially reverts commit e6e1e25935.

That commit changed the structure layout of the trace structure, which
in turn broke PowerTOP (1.9x generation) quite badly.

I appreciate not wanting to expose the variable in question, and
PowerTOP was not using it, so I've replaced the variable with just a
padding field - that way if in the future a new field is needed it can
just use this padding field.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-05-06 13:20:59 -07:00
Roland Dreier e328d41082 vmxnet3: Consistently disable irqs when taking adapter->cmd_lock
Using the vmxnet3 driver produces a lockdep warning because
vmxnet3_set_mc(), which is called with mc->mca_lock held, takes
adapter->cmd_lock.  However, there are a couple of places where
adapter->cmd_lock is taken with softirqs enabled, lockdep warns that a
softirq that tries to take mc->mca_lock could happen while
adapter->cmd_lock is held, leading to an AB-BA deadlock.

I'm not sure if this is a real potential deadlock or not, but the
simplest and best fix seems to be simply to make sure we take cmd_lock
with spin_lock_irqsave() everywhere -- the places with plain spin_lock
just look like oversights.

The full enormous lockdep warning is:

 =========================================================
 [ INFO: possible irq lock inversion dependency detected ]
 2.6.39-rc6+ #1
 ---------------------------------------------------------
 ifconfig/567 just changed the state of lock:
  (&(&mc->mca_lock)->rlock){+.-...}, at: [<ffffffff81531e9f>] mld_ifc_timer_expire+0xff/0x280
 but this lock took another, SOFTIRQ-unsafe lock in the past:
  (&(&adapter->cmd_lock)->rlock){+.+...}

 and interrupts could create inverse lock ordering between them.

 other info that might help us debug this:
 4 locks held by ifconfig/567:
  #0:  (rtnl_mutex){+.+.+.}, at: [<ffffffff8147d547>] rtnl_lock+0x17/0x20
  #1:  ((inetaddr_chain).rwsem){.+.+.+}, at: [<ffffffff810896cf>] __blocking_notifier_call_chain+0x5f/0xb0
  #2:  (&idev->mc_ifc_timer){+.-...}, at: [<ffffffff8106f21b>] run_timer_softirq+0xeb/0x3f0
  #3:  (&ndev->lock){++.-..}, at: [<ffffffff81531dd2>] mld_ifc_timer_expire+0x32/0x280

 the shortest dependencies between 2nd lock and 1st lock:
   -> (&(&adapter->cmd_lock)->rlock){+.+...} ops: 11 {
      HARDIRQ-ON-W at:
                                            [<ffffffff8109ad86>] __lock_acquire+0x7f6/0x1e10
                                            [<ffffffff8109ca4d>] lock_acquire+0x9d/0x130
                                            [<ffffffff81571156>] _raw_spin_lock+0x36/0x70
                                            [<ffffffffa000d212>] vmxnet3_alloc_intr_resources+0x22/0x230 [vmxnet3]
                                            [<ffffffffa0014031>] vmxnet3_probe_device+0x5f6/0x15c5 [vmxnet3]
                                            [<ffffffff812df67f>] local_pci_probe+0x5f/0xd0
                                            [<ffffffff812dfde9>] pci_device_probe+0x119/0x120
                                            [<ffffffff81373df6>] driver_probe_device+0x96/0x1c0
                                            [<ffffffff81373fcb>] __driver_attach+0xab/0xb0
                                            [<ffffffff81372a1e>] bus_for_each_dev+0x5e/0x90
                                            [<ffffffff81373a2e>] driver_attach+0x1e/0x20
                                            [<ffffffff813735b8>] bus_add_driver+0xc8/0x290
                                            [<ffffffff813745b6>] driver_register+0x76/0x140
                                            [<ffffffff812e0046>] __pci_register_driver+0x66/0xe0
                                            [<ffffffffa001b03a>] serio_raw_poll+0x3a/0x60 [serio_raw]
                                            [<ffffffff81002165>] do_one_initcall+0x45/0x190
                                            [<ffffffff810aa76b>] sys_init_module+0xfb/0x250
                                            [<ffffffff8157a142>] system_call_fastpath+0x16/0x1b
      SOFTIRQ-ON-W at:
                                            [<ffffffff8109adb7>] __lock_acquire+0x827/0x1e10
                                            [<ffffffff8109ca4d>] lock_acquire+0x9d/0x130
                                            [<ffffffff81571156>] _raw_spin_lock+0x36/0x70
                                            [<ffffffffa000d212>] vmxnet3_alloc_intr_resources+0x22/0x230 [vmxnet3]
                                            [<ffffffffa0014031>] vmxnet3_probe_device+0x5f6/0x15c5 [vmxnet3]
                                            [<ffffffff812df67f>] local_pci_probe+0x5f/0xd0
                                            [<ffffffff812dfde9>] pci_device_probe+0x119/0x120
                                            [<ffffffff81373df6>] driver_probe_device+0x96/0x1c0
                                            [<ffffffff81373fcb>] __driver_attach+0xab/0xb0
                                            [<ffffffff81372a1e>] bus_for_each_dev+0x5e/0x90
                                            [<ffffffff81373a2e>] driver_attach+0x1e/0x20
                                            [<ffffffff813735b8>] bus_add_driver+0xc8/0x290
                                            [<ffffffff813745b6>] driver_register+0x76/0x140
                                            [<ffffffff812e0046>] __pci_register_driver+0x66/0xe0
                                            [<ffffffffa001b03a>] serio_raw_poll+0x3a/0x60 [serio_raw]
                                            [<ffffffff81002165>] do_one_initcall+0x45/0x190
                                            [<ffffffff810aa76b>] sys_init_module+0xfb/0x250
                                            [<ffffffff8157a142>] system_call_fastpath+0x16/0x1b
      INITIAL USE at:
                                           [<ffffffff8109a9e9>] __lock_acquire+0x459/0x1e10
                                           [<ffffffff8109ca4d>] lock_acquire+0x9d/0x130
                                           [<ffffffff81571156>] _raw_spin_lock+0x36/0x70
                                           [<ffffffffa000d212>] vmxnet3_alloc_intr_resources+0x22/0x230 [vmxnet3]
                                           [<ffffffffa0014031>] vmxnet3_probe_device+0x5f6/0x15c5 [vmxnet3]
                                           [<ffffffff812df67f>] local_pci_probe+0x5f/0xd0
                                           [<ffffffff812dfde9>] pci_device_probe+0x119/0x120
                                           [<ffffffff81373df6>] driver_probe_device+0x96/0x1c0
                                           [<ffffffff81373fcb>] __driver_attach+0xab/0xb0
                                           [<ffffffff81372a1e>] bus_for_each_dev+0x5e/0x90
                                           [<ffffffff81373a2e>] driver_attach+0x1e/0x20
                                           [<ffffffff813735b8>] bus_add_driver+0xc8/0x290
                                           [<ffffffff813745b6>] driver_register+0x76/0x140
                                           [<ffffffff812e0046>] __pci_register_driver+0x66/0xe0
                                           [<ffffffffa001b03a>] serio_raw_poll+0x3a/0x60 [serio_raw]
                                           [<ffffffff81002165>] do_one_initcall+0x45/0x190
                                           [<ffffffff810aa76b>] sys_init_module+0xfb/0x250
                                           [<ffffffff8157a142>] system_call_fastpath+0x16/0x1b
    }
    ... key      at: [<ffffffffa0017590>] __key.42516+0x0/0xffffffffffffda70 [vmxnet3]
    ... acquired at:
    [<ffffffff8109ca4d>] lock_acquire+0x9d/0x130
    [<ffffffff81571bb5>] _raw_spin_lock_irqsave+0x55/0xa0
    [<ffffffffa000de27>] vmxnet3_set_mc+0x97/0x1a0 [vmxnet3]
    [<ffffffff8146ffa0>] __dev_set_rx_mode+0x40/0xb0
    [<ffffffff81470040>] dev_set_rx_mode+0x30/0x50
    [<ffffffff81470127>] __dev_open+0xc7/0x100
    [<ffffffff814703c1>] __dev_change_flags+0xa1/0x180
    [<ffffffff81470568>] dev_change_flags+0x28/0x70
    [<ffffffff814da960>] devinet_ioctl+0x730/0x800
    [<ffffffff814db508>] inet_ioctl+0x88/0xa0
    [<ffffffff814541f0>] sock_do_ioctl+0x30/0x70
    [<ffffffff814542a9>] sock_ioctl+0x79/0x2f0
    [<ffffffff81188798>] do_vfs_ioctl+0x98/0x570
    [<ffffffff81188d01>] sys_ioctl+0x91/0xa0
    [<ffffffff8157a142>] system_call_fastpath+0x16/0x1b

  -> (_xmit_ETHER){+.....} ops: 6 {
     HARDIRQ-ON-W at:
                                          [<ffffffff8109ad86>] __lock_acquire+0x7f6/0x1e10
                                          [<ffffffff8109ca4d>] lock_acquire+0x9d/0x130
                                          [<ffffffff8157124b>] _raw_spin_lock_bh+0x3b/0x70
                                          [<ffffffff81475618>] __dev_mc_add+0x38/0x90
                                          [<ffffffff814756a0>] dev_mc_add+0x10/0x20
                                          [<ffffffff81532c9e>] igmp6_group_added+0x10e/0x1b0
                                          [<ffffffff81533f2d>] ipv6_dev_mc_inc+0x2cd/0x430
                                          [<ffffffff81515e17>] ipv6_add_dev+0x357/0x450
                                          [<ffffffff81519f27>] addrconf_notify+0x2f7/0xb10
                                          [<ffffffff81575c1c>] notifier_call_chain+0x8c/0xc0
                                          [<ffffffff81089586>] raw_notifier_call_chain+0x16/0x20
                                          [<ffffffff814689b7>] call_netdevice_notifiers+0x37/0x70
                                          [<ffffffff8146a944>] register_netdevice+0x244/0x2d0
                                          [<ffffffff8146aa0f>] register_netdev+0x3f/0x60
                                          [<ffffffffa001419b>] vmxnet3_probe_device+0x760/0x15c5 [vmxnet3]
                                          [<ffffffff812df67f>] local_pci_probe+0x5f/0xd0
                                          [<ffffffff812dfde9>] pci_device_probe+0x119/0x120
                                          [<ffffffff81373df6>] driver_probe_device+0x96/0x1c0
                                          [<ffffffff81373fcb>] __driver_attach+0xab/0xb0
                                          [<ffffffff81372a1e>] bus_for_each_dev+0x5e/0x90
                                          [<ffffffff81373a2e>] driver_attach+0x1e/0x20
                                          [<ffffffff813735b8>] bus_add_driver+0xc8/0x290
                                          [<ffffffff813745b6>] driver_register+0x76/0x140
                                          [<ffffffff812e0046>] __pci_register_driver+0x66/0xe0
                                          [<ffffffffa001b03a>] serio_raw_poll+0x3a/0x60 [serio_raw]
                                          [<ffffffff81002165>] do_one_initcall+0x45/0x190
                                          [<ffffffff810aa76b>] sys_init_module+0xfb/0x250
                                          [<ffffffff8157a142>] system_call_fastpath+0x16/0x1b
     INITIAL USE at:
                                         [<ffffffff8109a9e9>] __lock_acquire+0x459/0x1e10
                                         [<ffffffff8109ca4d>] lock_acquire+0x9d/0x130
                                         [<ffffffff8157124b>] _raw_spin_lock_bh+0x3b/0x70
                                         [<ffffffff81475618>] __dev_mc_add+0x38/0x90
                                         [<ffffffff814756a0>] dev_mc_add+0x10/0x20
                                         [<ffffffff81532c9e>] igmp6_group_added+0x10e/0x1b0
                                         [<ffffffff81533f2d>] ipv6_dev_mc_inc+0x2cd/0x430
                                         [<ffffffff81515e17>] ipv6_add_dev+0x357/0x450
                                         [<ffffffff81519f27>] addrconf_notify+0x2f7/0xb10
                                         [<ffffffff81575c1c>] notifier_call_chain+0x8c/0xc0
                                         [<ffffffff81089586>] raw_notifier_call_chain+0x16/0x20
                                         [<ffffffff814689b7>] call_netdevice_notifiers+0x37/0x70
                                         [<ffffffff8146a944>] register_netdevice+0x244/0x2d0
                                         [<ffffffff8146aa0f>] register_netdev+0x3f/0x60
                                         [<ffffffffa001419b>] vmxnet3_probe_device+0x760/0x15c5 [vmxnet3]
                                         [<ffffffff812df67f>] local_pci_probe+0x5f/0xd0
                                         [<ffffffff812dfde9>] pci_device_probe+0x119/0x120
                                         [<ffffffff81373df6>] driver_probe_device+0x96/0x1c0
                                         [<ffffffff81373fcb>] __driver_attach+0xab/0xb0
                                         [<ffffffff81372a1e>] bus_for_each_dev+0x5e/0x90
                                         [<ffffffff81373a2e>] driver_attach+0x1e/0x20
                                         [<ffffffff813735b8>] bus_add_driver+0xc8/0x290
                                         [<ffffffff813745b6>] driver_register+0x76/0x140
                                         [<ffffffff812e0046>] __pci_register_driver+0x66/0xe0
                                         [<ffffffffa001b03a>] serio_raw_poll+0x3a/0x60 [serio_raw]
                                         [<ffffffff81002165>] do_one_initcall+0x45/0x190
                                         [<ffffffff810aa76b>] sys_init_module+0xfb/0x250
                                         [<ffffffff8157a142>] system_call_fastpath+0x16/0x1b
   }
   ... key      at: [<ffffffff827fd868>] netdev_addr_lock_key+0x8/0x1e0
   ... acquired at:
    [<ffffffff8109ca4d>] lock_acquire+0x9d/0x130
    [<ffffffff8157124b>] _raw_spin_lock_bh+0x3b/0x70
    [<ffffffff81475618>] __dev_mc_add+0x38/0x90
    [<ffffffff814756a0>] dev_mc_add+0x10/0x20
    [<ffffffff81532c9e>] igmp6_group_added+0x10e/0x1b0
    [<ffffffff81533f2d>] ipv6_dev_mc_inc+0x2cd/0x430
    [<ffffffff81515e17>] ipv6_add_dev+0x357/0x450
    [<ffffffff81519f27>] addrconf_notify+0x2f7/0xb10
    [<ffffffff81575c1c>] notifier_call_chain+0x8c/0xc0
    [<ffffffff81089586>] raw_notifier_call_chain+0x16/0x20
    [<ffffffff814689b7>] call_netdevice_notifiers+0x37/0x70
    [<ffffffff8146a944>] register_netdevice+0x244/0x2d0
    [<ffffffff8146aa0f>] register_netdev+0x3f/0x60
    [<ffffffffa001419b>] vmxnet3_probe_device+0x760/0x15c5 [vmxnet3]
    [<ffffffff812df67f>] local_pci_probe+0x5f/0xd0
    [<ffffffff812dfde9>] pci_device_probe+0x119/0x120
    [<ffffffff81373df6>] driver_probe_device+0x96/0x1c0
    [<ffffffff81373fcb>] __driver_attach+0xab/0xb0
    [<ffffffff81372a1e>] bus_for_each_dev+0x5e/0x90
    [<ffffffff81373a2e>] driver_attach+0x1e/0x20
    [<ffffffff813735b8>] bus_add_driver+0xc8/0x290
    [<ffffffff813745b6>] driver_register+0x76/0x140
    [<ffffffff812e0046>] __pci_register_driver+0x66/0xe0
    [<ffffffffa001b03a>] serio_raw_poll+0x3a/0x60 [serio_raw]
    [<ffffffff81002165>] do_one_initcall+0x45/0x190
    [<ffffffff810aa76b>] sys_init_module+0xfb/0x250
    [<ffffffff8157a142>] system_call_fastpath+0x16/0x1b

 -> (&(&mc->mca_lock)->rlock){+.-...} ops: 6 {
    HARDIRQ-ON-W at:
                                        [<ffffffff8109ad86>] __lock_acquire+0x7f6/0x1e10
                                        [<ffffffff8109ca4d>] lock_acquire+0x9d/0x130
                                        [<ffffffff8157124b>] _raw_spin_lock_bh+0x3b/0x70
                                        [<ffffffff81532bd5>] igmp6_group_added+0x45/0x1b0
                                        [<ffffffff81533f2d>] ipv6_dev_mc_inc+0x2cd/0x430
                                        [<ffffffff81515e17>] ipv6_add_dev+0x357/0x450
                                        [<ffffffff81ce0d16>] addrconf_init+0x4e/0x183
                                        [<ffffffff81ce0ba1>] inet6_init+0x191/0x2a6
                                        [<ffffffff81002165>] do_one_initcall+0x45/0x190
                                        [<ffffffff81ca4d3f>] kernel_init+0xe3/0x168
                                        [<ffffffff8157b2e4>] kernel_thread_helper+0x4/0x10
    IN-SOFTIRQ-W at:
                                        [<ffffffff8109ad5e>] __lock_acquire+0x7ce/0x1e10
                                        [<ffffffff8109ca4d>] lock_acquire+0x9d/0x130
                                        [<ffffffff8157124b>] _raw_spin_lock_bh+0x3b/0x70
                                        [<ffffffff81531e9f>] mld_ifc_timer_expire+0xff/0x280
                                        [<ffffffff8106f2a9>] run_timer_softirq+0x179/0x3f0
                                        [<ffffffff810666d0>] __do_softirq+0xc0/0x210
                                        [<ffffffff8157b3dc>] call_softirq+0x1c/0x30
                                        [<ffffffff8100d42d>] do_softirq+0xad/0xe0
                                        [<ffffffff81066afe>] irq_exit+0x9e/0xb0
                                        [<ffffffff8157bd40>] smp_apic_timer_interrupt+0x70/0x9b
                                        [<ffffffff8157ab93>] apic_timer_interrupt+0x13/0x20
                                        [<ffffffff8149d857>] rt_do_flush+0x87/0x2a0
                                        [<ffffffff814a16b6>] rt_cache_flush+0x46/0x60
                                        [<ffffffff814e36e0>] fib_disable_ip+0x40/0x60
                                        [<ffffffff814e5447>] fib_inetaddr_event+0xd7/0xe0
                                        [<ffffffff81575c1c>] notifier_call_chain+0x8c/0xc0
                                        [<ffffffff810896e8>] __blocking_notifier_call_chain+0x78/0xb0
                                        [<ffffffff81089736>] blocking_notifier_call_chain+0x16/0x20
                                        [<ffffffff814d8021>] __inet_del_ifa+0xf1/0x2e0
                                        [<ffffffff814d8223>] inet_del_ifa+0x13/0x20
                                        [<ffffffff814da731>] devinet_ioctl+0x501/0x800
                                        [<ffffffff814db508>] inet_ioctl+0x88/0xa0
                                        [<ffffffff814541f0>] sock_do_ioctl+0x30/0x70
                                        [<ffffffff814542a9>] sock_ioctl+0x79/0x2f0
                                        [<ffffffff81188798>] do_vfs_ioctl+0x98/0x570
                                        [<ffffffff81188d01>] sys_ioctl+0x91/0xa0
                                        [<ffffffff8157a142>] system_call_fastpath+0x16/0x1b
    INITIAL USE at:
                                       [<ffffffff8109a9e9>] __lock_acquire+0x459/0x1e10
                                       [<ffffffff8109ca4d>] lock_acquire+0x9d/0x130
                                       [<ffffffff8157124b>] _raw_spin_lock_bh+0x3b/0x70
                                       [<ffffffff81532bd5>] igmp6_group_added+0x45/0x1b0
                                       [<ffffffff81533f2d>] ipv6_dev_mc_inc+0x2cd/0x430
                                       [<ffffffff81515e17>] ipv6_add_dev+0x357/0x450
                                       [<ffffffff81ce0d16>] addrconf_init+0x4e/0x183
                                       [<ffffffff81ce0ba1>] inet6_init+0x191/0x2a6
                                       [<ffffffff81002165>] do_one_initcall+0x45/0x190
                                       [<ffffffff81ca4d3f>] kernel_init+0xe3/0x168
                                       [<ffffffff8157b2e4>] kernel_thread_helper+0x4/0x10
  }
  ... key      at: [<ffffffff82801be2>] __key.40877+0x0/0x8
  ... acquired at:
    [<ffffffff810997bc>] check_usage_forwards+0x9c/0x110
    [<ffffffff8109a32c>] mark_lock+0x19c/0x400
    [<ffffffff8109ad5e>] __lock_acquire+0x7ce/0x1e10
    [<ffffffff8109ca4d>] lock_acquire+0x9d/0x130
    [<ffffffff8157124b>] _raw_spin_lock_bh+0x3b/0x70
    [<ffffffff81531e9f>] mld_ifc_timer_expire+0xff/0x280
    [<ffffffff8106f2a9>] run_timer_softirq+0x179/0x3f0
    [<ffffffff810666d0>] __do_softirq+0xc0/0x210
    [<ffffffff8157b3dc>] call_softirq+0x1c/0x30
    [<ffffffff8100d42d>] do_softirq+0xad/0xe0
    [<ffffffff81066afe>] irq_exit+0x9e/0xb0
    [<ffffffff8157bd40>] smp_apic_timer_interrupt+0x70/0x9b
    [<ffffffff8157ab93>] apic_timer_interrupt+0x13/0x20
    [<ffffffff8149d857>] rt_do_flush+0x87/0x2a0
    [<ffffffff814a16b6>] rt_cache_flush+0x46/0x60
    [<ffffffff814e36e0>] fib_disable_ip+0x40/0x60
    [<ffffffff814e5447>] fib_inetaddr_event+0xd7/0xe0
    [<ffffffff81575c1c>] notifier_call_chain+0x8c/0xc0
    [<ffffffff810896e8>] __blocking_notifier_call_chain+0x78/0xb0
    [<ffffffff81089736>] blocking_notifier_call_chain+0x16/0x20
    [<ffffffff814d8021>] __inet_del_ifa+0xf1/0x2e0
    [<ffffffff814d8223>] inet_del_ifa+0x13/0x20
    [<ffffffff814da731>] devinet_ioctl+0x501/0x800
    [<ffffffff814db508>] inet_ioctl+0x88/0xa0
    [<ffffffff814541f0>] sock_do_ioctl+0x30/0x70
    [<ffffffff814542a9>] sock_ioctl+0x79/0x2f0
    [<ffffffff81188798>] do_vfs_ioctl+0x98/0x570
    [<ffffffff81188d01>] sys_ioctl+0x91/0xa0
    [<ffffffff8157a142>] system_call_fastpath+0x16/0x1b

 stack backtrace:
 Pid: 567, comm: ifconfig Not tainted 2.6.39-rc6+ #1
 Call Trace:
  <IRQ>  [<ffffffff810996f6>] print_irq_inversion_bug+0x146/0x170
  [<ffffffff81099720>] ? print_irq_inversion_bug+0x170/0x170
  [<ffffffff810997bc>] check_usage_forwards+0x9c/0x110
  [<ffffffff8109a32c>] mark_lock+0x19c/0x400
  [<ffffffff8109ad5e>] __lock_acquire+0x7ce/0x1e10
  [<ffffffff8109a383>] ? mark_lock+0x1f3/0x400
  [<ffffffff8109b497>] ? __lock_acquire+0xf07/0x1e10
  [<ffffffff81012255>] ? native_sched_clock+0x15/0x70
  [<ffffffff8109ca4d>] lock_acquire+0x9d/0x130
  [<ffffffff81531e9f>] ? mld_ifc_timer_expire+0xff/0x280
  [<ffffffff8109759d>] ? lock_release_holdtime+0x3d/0x1a0
  [<ffffffff8157124b>] _raw_spin_lock_bh+0x3b/0x70
  [<ffffffff81531e9f>] ? mld_ifc_timer_expire+0xff/0x280
  [<ffffffff8157170b>] ? _raw_spin_unlock+0x2b/0x40
  [<ffffffff81531e9f>] mld_ifc_timer_expire+0xff/0x280
  [<ffffffff8106f2a9>] run_timer_softirq+0x179/0x3f0
  [<ffffffff8106f21b>] ? run_timer_softirq+0xeb/0x3f0
  [<ffffffff810122b9>] ? sched_clock+0x9/0x10
  [<ffffffff81531da0>] ? mld_gq_timer_expire+0x30/0x30
  [<ffffffff810666d0>] __do_softirq+0xc0/0x210
  [<ffffffff8109455f>] ? tick_program_event+0x1f/0x30
  [<ffffffff8157b3dc>] call_softirq+0x1c/0x30
  [<ffffffff8100d42d>] do_softirq+0xad/0xe0
  [<ffffffff81066afe>] irq_exit+0x9e/0xb0
  [<ffffffff8157bd40>] smp_apic_timer_interrupt+0x70/0x9b
  [<ffffffff8157ab93>] apic_timer_interrupt+0x13/0x20
  <EOI>  [<ffffffff81571f14>] ? retint_restore_args+0x13/0x13
  [<ffffffff810974a7>] ? lock_is_held+0x17/0xd0
  [<ffffffff8149d857>] rt_do_flush+0x87/0x2a0
  [<ffffffff814a16b6>] rt_cache_flush+0x46/0x60
  [<ffffffff814e36e0>] fib_disable_ip+0x40/0x60
  [<ffffffff814e5447>] fib_inetaddr_event+0xd7/0xe0
  [<ffffffff81575c1c>] notifier_call_chain+0x8c/0xc0
  [<ffffffff810896e8>] __blocking_notifier_call_chain+0x78/0xb0
  [<ffffffff81089736>] blocking_notifier_call_chain+0x16/0x20
  [<ffffffff814d8021>] __inet_del_ifa+0xf1/0x2e0
  [<ffffffff814d8223>] inet_del_ifa+0x13/0x20
  [<ffffffff814da731>] devinet_ioctl+0x501/0x800
  [<ffffffff8108a3af>] ? local_clock+0x6f/0x80
  [<ffffffff81575898>] ? do_page_fault+0x268/0x560
  [<ffffffff814db508>] inet_ioctl+0x88/0xa0
  [<ffffffff814541f0>] sock_do_ioctl+0x30/0x70
  [<ffffffff814542a9>] sock_ioctl+0x79/0x2f0
  [<ffffffff810dfe87>] ? __call_rcu+0xa7/0x190
  [<ffffffff81188798>] do_vfs_ioctl+0x98/0x570
  [<ffffffff8117737e>] ? fget_light+0x33e/0x430
  [<ffffffff81571ef9>] ? retint_swapgs+0x13/0x1b
  [<ffffffff81188d01>] sys_ioctl+0x91/0xa0
  [<ffffffff8157a142>] system_call_fastpath+0x16/0x1b

Signed-off-by: Roland Dreier <roland@purestorage.com>
Signed-off-by: Shreyas N Bhatewara <sbhatewara@vmware.com>
Signed-off-by: Scott J. Goldman <scottjg@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-06 13:11:57 -07:00
Dan Rosenberg a294865978 dccp: handle invalid feature options length
A length of zero (after subtracting two for the type and len fields) for
the DCCPO_{CHANGE,CONFIRM}_{L,R} options will cause an underflow due to
the subtraction.  The subsequent code may read past the end of the
options value buffer when parsing.  I'm unsure of what the consequences
of this might be, but it's probably not good.

Signed-off-by: Dan Rosenberg <drosenberg@vsecurity.com>
Cc: stable@kernel.org
Acked-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-06 13:05:50 -07:00
Linus Torvalds e5e06985be Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6:
  [SCSI] fix oops in scsi_run_queue()
2011-05-06 10:01:54 -07:00
Timo Warns fa039d5f6b Validate size of EFI GUID partition entries.
Otherwise corrupted EFI partition tables can cause total confusion.

Signed-off-by: Timo Warns <warns@pre-sense.de>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-05-06 07:46:37 -07:00