Commit Graph

180834 Commits

Author SHA1 Message Date
Ben Gardner
0d883db628 gpio: cs5535-gpio: fix input direction
commit a8a5164c29 upstream.

The cs5535-gpio driver's get() function was returning the output value.
This means that the GPIO pins would never work as an input, even if
configured as an input.

The driver should return the READ_BACK value, which is the sensed line
value.  To make that work when the direction is 'output', INPUT_ENABLE
needs to be set.

In addition, the driver was not disabling OUTPUT_ENABLE when the direction
is set to 'input'.  That would cause the GPIO to continue to drive the pin
if the direction was ever set to output.

This issue was noticed when attempting to use the gpiolib driver to read
an external input.  I had previously been using the char/cs5535-gpio
driver.

Signed-off-by: Ben Gardner <gardner.ben@gmail.com>
Acked-by: Andres Salomon <dilinger@collabora.co.uk>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-15 09:06:32 -07:00
Mark Brown
b8960a6272 gpiolib: Actually set output state in wm831x_gpio_direction_output()
commit 3383d23d86 upstream.

wm831x_gpio_direction_output() ignored the state passed into it.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-15 09:06:32 -07:00
Christian Lamparter
d1efc1b1cb p54pci: handle dma mapping errors
commit 288c8ce804 upstream.

This patch adds error-paths to handle pci_dma_mapping errors.

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-15 09:06:30 -07:00
Jean-François Moine
065bbb5b19 p54usb: Add the USB ID for Belkin (Accton) FD7050E ver 1010ec
commit 5b9a919a97 upstream.

Yet another USB ID.

Signed-off-by: Jean-François Moine <moinejf@free.fr>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-15 09:06:30 -07:00
Luotao Fu
5eb790672b USB: fix I2C API usage in ohci-pnx4008.
commit 8740cc7d0c upstream.

i2c_board_info doesn't contain a member called name. i2c_register_client
call does not exist.

Signed-off-by: Luotao Fu <l.fu@pengutronix.de>
Acked-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-15 09:06:29 -07:00
Elina Pasheva
3c0611ea17 USB: serial: sierra driver indat_callback fix
commit b87c6e86da upstream.

A crash has been reported with sierra driver on disconnect with
Ubuntu/Lucid distribution based on kernel-2.6.32.
The cause of the crash was determined as "NULL tty pointer was being
referenced" and the NULL pointer was passed by sierra_indat_callback().

This patch modifies sierra_indat_callback() function to check for NULL
tty structure pointer. This modification prevents a crash from happening
when the device is disconnected.

This patch fixes the bug reported in Launchpad:
  https://bugs.launchpad.net/ubuntu/+source/linux/+bug/511157

Signed-off-by: Elina Pasheva <epasheva@sierrawireless.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-15 09:06:28 -07:00
Baruch Siach
401c1e931d serial: imx: fix NULL dereference Oops when pdata == NULL
commit bbcd18d1b3 upstream.

The platform code doesn't have to provide platform data to get sensible
default behaviour from the imx serial driver.

This patch does not handle NULL dereference in the IrDA case, which still
requires a valid platform data pointer (in imx_startup()/imx_shutdown()),
since I don't know whether there is a sensible default behaviour, or
should the operation just fail cleanly.

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Cc: Baruch Siach <baruch@tkos.co.il>
Cc: Alan Cox <alan@linux.intel.com>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Oskar Schirmer <os@emlix.com>
Cc: Fabian Godehardt <fg@emlix.com>
Cc: Daniel Glöckner <dg@emlix.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-15 09:06:27 -07:00
Alan Cox
b31bb1d2ad tty: Fix the ldisc hangup race
commit 638b9648ab upstream.

This was noticed by Matthias Urlichs and he proposed a fix. This patch
does the fixing a different way to avoid introducing several new race
conditions into the code.

The problem case is TTY_DRIVER_RESET_TERMIOS = 0. In that case while we
abort the ldisc change, the hangup processing has not cleaned up and restarted
the ldisc either.

We can't restart the ldisc stuff in the set_ldisc as we don't know what
the hangup did and may touch stuff we shouldn't as we are no longer
supposed to influence the tty at that point in case it has been re-opened
before we get rescheduled.

Instead do it the simple way. Always re-init the ldisc on the hangup, but
use TTY_DRIVER_RESET_TERMIOS to indicate that we should force N_TTY.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-15 09:06:26 -07:00
Eric W. Biederman
768941b8ee sysfs: Cache the last sysfs_dirent to improve readdir scalability v2
commit 1e5289c97b upstream.

When sysfs_readdir stops short we now cache the next
sysfs_dirent to return to user space in filp->private_data.
There is no impact on the rest of sysfs by doing this and
in the common case it allows us to pick up exactly where
we left off with no seeking.

Additionally I drop and regrab the sysfs_mutex around
filldir to avoid a page fault abritrarily increasing the
hold time on the sysfs_mutex.

v2: Returned to using INT_MAX as the EOF condition.
    seekdir is ambiguous unless all directory entries have
    a unique f_pos value.

Fixes http://bugzilla.kernel.org/show_bug.cgi?id=14949

Signed-off-by: Eric W. Biederman <ebiederm@aristanetworks.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-15 09:06:26 -07:00
Kay Sievers
b7d0e6b451 Driver-Core: devtmpfs - reset inode permissions before unlinking
commit 5e31d76f28 upstream.

Before unlinking the inode, reset the current permissions of possible
references like hardlinks, so granted permissions can not be retained
across the device lifetime by creating hardlinks, in the unusual case
that there is a user-writable directory on the same filesystem.

Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-15 09:06:23 -07:00
Tejun Heo
b1d7e73ab2 driver-core: fix race condition in get_device_parent()
commit 77d3d7c1d5 upstream.

sysfs is creating several devices in cuse class concurrently and with
CONFIG_SYSFS_DEPRECATED turned off, it triggers the following oops.

 BUG: unable to handle kernel NULL pointer dereference at 0000000000000038
 IP: [<ffffffff81158b0a>] sysfs_addrm_start+0x4a/0xf0
 PGD 75bb067 PUD 75be067 PMD 0
 Oops: 0000 [#1] PREEMPT SMP
 last sysfs file: /sys/devices/system/cpu/cpu7/topology/core_siblings
 CPU 1
 Modules linked in: cuse fuse
 Pid: 4737, comm: osspd Not tainted 2.6.31-work #77
 RIP: 0010:[<ffffffff81158b0a>]  [<ffffffff81158b0a>] sysfs_addrm_start+0x4a/0xf0
 RSP: 0018:ffff88000042f8f8  EFLAGS: 00010296
 RAX: ffff88000042ffd8 RBX: 0000000000000000 RCX: 0000000000000000
 RDX: 0000000000000000 RSI: ffff880007eef660 RDI: 0000000000000001
 RBP: ffff88000042f918 R08: 0000000000000000 R09: 0000000000000000
 R10: 0000000000000001 R11: ffffffff81158b0a R12: ffff88000042f928
 R13: 00000000fffffff4 R14: 0000000000000000 R15: ffff88000042f9a0
 FS:  00007fe93905a950(0000) GS:ffff880008600000(0000) knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
 CR2: 0000000000000038 CR3: 00000000077c9000 CR4: 00000000000006e0
 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
 Process osspd (pid: 4737, threadinfo ffff88000042e000, task ffff880007eef040)
 Stack:
  ffff880005da10e8 0000000011cc8d6e ffff88000042f928 ffff880003d28a28
 <0> ffff88000042f988 ffffffff811592d7 0000000000000000 0000000000000000
 <0> 0000000000000000 0000000000000000 ffff88000042f958 0000000011cc8d6e
 Call Trace:
  [<ffffffff811592d7>] create_dir+0x67/0xe0
  [<ffffffff811593a8>] sysfs_create_dir+0x58/0xb0
  [<ffffffff8128ca7c>] ? kobject_add_internal+0xcc/0x220
  [<ffffffff812942e1>] ? vsnprintf+0x3c1/0xb90
  [<ffffffff8128cab7>] kobject_add_internal+0x107/0x220
  [<ffffffff8128cd37>] kobject_add_varg+0x47/0x80
  [<ffffffff8128ce53>] kobject_add+0x53/0x90
  [<ffffffff81357d84>] device_add+0xd4/0x690
  [<ffffffff81356c2b>] ? dev_set_name+0x4b/0x70
  [<ffffffffa001a884>] cuse_process_init_reply+0x2b4/0x420 [cuse]
  ...

The problem is that kobject_add_internal() first adds a kobject to the
kset and then try to create sysfs directory for it.  If the creation
fails, it remove the kobject from the kset.  get_device_parent()
accesses class_dirs kset while only holding class_dirs.list_lock to
see whether the cuse class dir exists.  But when it exists, it may not
have finished initialization yet or may fail and get removed soon.  In
the above case, the former happened so the second one ends up trying
to create subdirectory under NULL sysfs_dirent.

Fix it by grabbing a mutex in get_device_parent().

Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Colin Guthrie <cguthrie@mandriva.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-15 09:06:23 -07:00
Daniel Mack
682b7d6cf5 ASoC: fix ak4104 register array access
commit e555317c08 upstream.

Don't touch the variable 'reg' to construct the value for the actual SPI
transport. This variable is again used to access the driver's register
cache, and so random memory is overwritten.
Compute the value in-place instead.

Signed-off-by: Daniel Mack <daniel@caiaq.de>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-15 09:06:22 -07:00
Paul Menzel
be0be57d67 ALSA: hda-intel: Add position_fix quirk for ASUS M2V-MX SE.
commit 0708cc582f upstream.

With PulseAudio and an application accessing an input device like `gnome-volume-manager` both have high CPU load as reported in [1].

Loading `snd-hda-intel` with `position_fix=1` fixes this issue. Therefore add a quirk for ASUS M2V-MX SE.

The only downside is, when now exiting for example MPlayer when it is playing an audio file a high pitched sound is outputted by the speaker.

$ lspci -vvnn | grep -A10 Audio
20:01.0 Audio device [0403]: VIA Technologies, Inc. VT1708/A [Azalia HDAC] (VIA High Definition Audio Controller) [1106:3288] (rev 10)
	Subsystem: ASUSTeK Computer Inc. Device [1043:8290]
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 17
	Region 0: Memory at fbffc000 (64-bit, non-prefetchable) [size=16K]
	Capabilities: <access denied>
	Kernel driver in use: HDA Intel

[1] http://sourceforge.net/mailarchive/forum.php?thread_name=1265550675.4642.24.camel%40mattotaupa&forum_name=alsa-user

Signed-off-by: Paul Menzel <paulepanter@users.sourceforge.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-15 09:06:22 -07:00
Daniel T Chen
c8ee5d7c67 ALSA: hda: Use LPIB for a Biostar Microtech board
commit 0321b69569 upstream.

BugLink: https://launchpad.net/bugs/523953

The OR has verified that position_fix=1 is necessary to work around
errors on his machine.

Reported-by: MMarking
Signed-off-by: Daniel T Chen <crimsun@ubuntu.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-15 09:06:22 -07:00
Daniel T Chen
8630c9af92 ALSA: hda: Use LPIB for Dell Latitude 131L
commit 9919c7619c upstream.

BugLink: https://launchpad.net/bugs/530346

The OR has verified that position_fix=1 is necessary to work around
errors on his machine.

Reported-by: Tom Louwrier
Signed-off-by: Daniel T Chen <crimsun@ubuntu.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-15 09:06:21 -07:00
Henrique de Moraes Holschuh
d707522d42 thinkpad-acpi: fix ALSA callback return status
commit 88cc83772a upstream.

Clemens Ladisch reports that thinkpad-acpi improperly implements the
ALSA API, and always returns 0 for success for the "put" callbacks
while the API requires it to return "1" when the control value has
been changed in the hardware/firmware.

Rework the volume subdriver to be able to properly implement the ALSA
API.  Based on a patch by Clemens Ladisch <clemens@ladisch.de>.

This fix is also needed on 2.6.33.

Reported-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-15 09:06:21 -07:00
Sebastien Alaiwan
f4d574122b ALSA: USB MIDI support for Access Music VirusTI
commit d39e82db73 upstream.

Here's a patch that adds MIDI support through USB for one of the Access
Music synths, the VirusTI.

The synth uses standard USBMIDI protocol on its USB interface 3, although
it does signal "vendor specific" class. A magic string has to be sent on
interface 3 to enable the sending of MIDI from the synth (this string was
found by sniffing usb communication of the Windows driver). This is all
my patch does, and it works on my computer.

Please note that the synth can also do standard usb audio I/O on its
interfaces 2&3, which already works with the current snd-usb-audio driver,
except for the audio input from the synth. I'm going to work on it when I
have some time.

Signed-off-by: Sebastien Alaiwan <sebastien.alaiwan@gmail.com>
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-15 09:06:21 -07:00
Clemens Ladisch
c7a4ea295b ALSA: usb-audio: reduce MIDI packet size to work around broken firmware
commit f167e1d073 upstream.

Extend the list of devices whose firmware does not expect more than one
USB MIDI packet in one USB packet.

bug report: https://bugtrack.alsa-project.org/alsa-bug/view.php?id=3752

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-15 09:06:20 -07:00
Jaroslav Kysela
616b05819b ALSA: pcm core - fix fifo_size channels interval check
commit 3be522a951 upstream.

Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-15 09:06:20 -07:00
Clemens Ladisch
4504b9999d ALSA: via82xx: add quirk for D1289 motherboard
commit bf30a4309d upstream.

Add a headphones-only quirk for the Fujitsu Siemens D1289.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Reported-and-tested-by: Marc Haber <mh+alsa201002@zugschlus.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-15 09:06:20 -07:00
Daniel T Chen
bcbf140797 ALSA: hda: Use 3stack quirk for Toshiba Satellite L40-10Q
commit ba579eb7b3 upstream.

BugLink: https://bugs.launchpad.net/bugs/524948

The OR has verified that the existing model=laptop-eapd quirk does not
function correctly but instead needs model=3stack.  Make this change
so that manual corrections to module-init-tools file(s) are not
required.

Reported-by: Lasse Havelund <lasse@havelund.org>
Signed-off-by: Daniel T Chen <crimsun@ubuntu.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-15 09:06:18 -07:00
Jeff Mahoney
89a724c83c tracing: Fix ftrace_event_call alignment for use with gcc 4.5
commit 86c38a31aa upstream.

GCC 4.5 introduces behavior that forces the alignment of structures to
 use the largest possible value. The default value is 32 bytes, so if
 some structures are defined with a 4-byte alignment and others aren't
 declared with an alignment constraint at all - it will align at 32-bytes.

 For things like the ftrace events, this results in a non-standard array.
 When initializing the ftrace subsystem, we traverse the _ftrace_events
 section and call the initialization callback for each event. When the
 structures are misaligned, we could be treating another part of the
 structure (or the zeroed out space between them) as a function pointer.

 This patch forces the alignment for all the ftrace_event_call structures
 to 4 bytes.

 Without this patch, the kernel fails to boot very early when built with
 gcc 4.5.

 It's trivial to check the alignment of the members of the array, so it
 might be worthwhile to add something to the build system to do that
 automatically. Unfortunately, that only covers this case. I've asked one
 of the gcc developers about adding a warning when this condition is seen.

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
LKML-Reference: <4B85770B.6010901@suse.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-15 09:06:17 -07:00
Peter Zijlstra
21a6adcde0 perf: Reimplement frequency driven sampling
commit abd5071394 upstream.

There was a bug in the old period code that caused intel_pmu_enable_all()
or native_write_msr_safe() to show up quite high in the profiles.

In staring at that code it made my head hurt, so I rewrote it in a
hopefully simpler fashion. Its now fully symetric between tick and
overflow driven adjustments and uses less data to boot.

The only complication is that it basically wants to do a u128 division.
The code approximates that in a rather simple truncate until it fits
fashion, taking care to balance the terms while truncating.

This version does not generate that sampling artefact.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-15 09:06:17 -07:00
Robert Richter
69cb5f7cdc oprofile/x86: fix msr access to reserved counters
commit cfc9c0b450 upstream.

During switching virtual counters there is access to perfctr msrs. If
the counter is not available this fails due to an invalid
address. This patch fixes this.

Signed-off-by: Robert Richter <robert.richter@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-15 09:06:15 -07:00
Robert Richter
53999488a0 oprofile/x86: use kzalloc() instead of kmalloc()
commit c17c8fbf34 upstream.

Signed-off-by: Robert Richter <robert.richter@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-15 09:06:15 -07:00
Robert Richter
0f8bdb7e9b oprofile/x86: remove node check in AMD IBS initialization
commit 89baaaa98a upstream.

Standard AMD systems have the same number of nodes as there are
northbridge devices. However, there may kernel configurations
(especially for 32 bit) or system setups exist, where the node number
is different or it can not be detected properly. Thus the check is not
reliable and may fail though IBS setup was fine. For this reason it is
better to remove the check.

Signed-off-by: Robert Richter <robert.richter@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-15 09:06:15 -07:00
Robert Richter
0c802e02fb oprofile: remove tracing build dependency
commit 18b4a4d59e upstream.

The commit

 1155de4 ring-buffer: Make it generally available

already made ring-buffer available without the TRACING option
enabled. This patch removes the TRACING dependency from oprofile.

Fixes also oprofile configuration on ia64.

The patch also applies to the 2.6.32-stable kernel.

Reported-by: Tony Jones <tonyj@suse.de>
Signed-off-by: Robert Richter <robert.richter@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-15 09:06:14 -07:00
Peter Zijlstra
fc0df425c9 perf_event: Fix preempt warning in perf_clock()
commit 24691ea964 upstream.

A recent commit introduced a preemption warning for
perf_clock(), use raw_smp_processor_id() to avoid this, it
really doesn't matter which cpu we use here.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <1267198583.22519.684.camel@laptop>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-15 09:06:14 -07:00
Zhang, Yanmin
5f37656428 perf symbols: Check the right return variable
commit 37fe5fcb7a upstream.

In function dso__split_kallsyms(), curr_map saves the return value
of map__new2. So check it instead of var map after the call returns.

Signed-off-by: Zhang Yanmin <yanmin_zhang@linux.intel.com>
Acked-by: David S. Miller <davem@davemloft.net>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <1267066851.1726.9.camel@localhost>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-15 09:06:12 -07:00
Robert Richter
00faf75b76 oprofile/x86: fix perfctr nmi reservation for mulitplexing
commit 68dc819ce8 upstream.

Multiple virtual counters share one physical counter. The reservation
of virtual counters fails due to duplicate allocation of the same
counter. The counters are already reserved. Thus, virtual counter
reservation may removed at all. This also makes the code easier.

Signed-off-by: Robert Richter <robert.richter@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-15 09:06:12 -07:00
Jean Delvare
ac89db9934 macintosh/hwmon/ams: Fix device removal sequence
commit 98ceb75c7c upstream.

Some code that is in ams_exit() (the module exit code) should instead
be called when the device (not module) is removed. It probably doesn't
make much of a difference in the PMU case, but in the I2C case it does
matter.

I make no guarantee that my fix isn't racy, I'm not familiar enough
with the ams driver code to tell for sure.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Tested-by: Christian Kujau <lists@nerdbynature.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Stelian Pop <stelian@popies.net>
Cc: Michael Hanselmann <linux-kernel@hansmi.ch>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-15 09:06:12 -07:00
Jean Delvare
44fc910605 macintosh/therm_adt746x: Fix sysfs attributes lifetime
commit 33a470f6d5 upstream.

Looking at drivers/macintosh/therm_adt746x.c, the sysfs files are
created in thermostat_init() and removed in thermostat_exit(), which
are the driver's init and exit functions. These files are backed-up by
a per-device structure, so it looks like the wrong thing to do: the
sysfs files have a lifetime longer than the data structure that is
backing it up.

I think that sysfs files creation should be moved to the end of
probe_thermostat() and sysfs files removal should be moved to the
beginning of remove_thermostat().

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Tested-by: Christian Kujau <lists@nerdbynature.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Colin Leroy <colin@colino.net>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-15 09:06:11 -07:00
Rafael J. Wysocki
9a255c79b2 PM / Hibernate: Fix preallocating of memory
commit a9c9b4429d upstream.

The hibernate memory preallocation code allocates memory to push some
user space data out of physical RAM, so that the hibernation image is
not too large.  It allocates more memory than necessary for creating
the image, so it has to release some pages to make room for
allocations made while suspending devices and disabling nonboot CPUs,
or the system will hang due to the lack of free pages to allocate
from.  Unfortunately, the function used for freeing these pages,
free_unnecessary_pages(), contains a bug that prevents it from doing
the job on all systems without highmem.

Fix this problem, which is a regression from the 2.6.30 kernel, by
using the right condition for the termination of the loop in
free_unnecessary_pages().

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Reported-and-tested-by: Alan Jenkins <sourcejedi.lkml@googlemail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-15 09:06:10 -07:00
Baruch Siach
ac3da4193b V4L/DVB: v4l: soc_camera: fix bound checking of mbus_fmt[] index
commit 84f3751d6a upstream.

When code <= V4L2_MBUS_FMT_FIXED soc_mbus_get_fmtdesc returns a pointer to
mbus_fmt[x], where x < 0. Fix this.

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-15 09:06:09 -07:00
Ang Way Chuang
656bb50452 dvb-core: Fix DoS bug in ULE decapsulation code that can be triggered by an invalid Payload Pointer
commit 29e1fa3565 upstream.

ULE (Unidirectional Lightweight Encapsulation RFC 4326) decapsulation
has a bug that causes endless loop when Payload Pointer of MPEG2-TS
frame is 182 or 183.  Anyone who sends malicious MPEG2-TS frame will
cause the receiver of ULE SNDU to go into endless loop.

This patch was generated and tested against linux-2.6.32.9 and should
apply cleanly to linux-2.6.33 as well because there was only one typo
fix to dvb_net.c since v2.6.32.

This bug was brought to you by modern day Santa Claus who decided to
shower the satellite dish at Keio University with heavy snow causing
huge burst of errors.  We, receiver end, received Santa Claus's gift in
the form of kernel bug.

Care has been taken not to introduce more bug by fixing this bug, but
please scrutinize the code for I always produces buggy code.

Signed-off-by: Ang Way Chuang <wcang79@gmail.com>
Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-15 09:06:09 -07:00
Greg Kroah-Hartman
418865c74f Staging: mimio: remove the mimio driver
commit e37bcc0de0 upstream.

It turns out that Mimio has a userspace solution for this product using
libusb, and the in-kernel driver is just getting in the way now and
causing problems.  So they have asked that the in-kernel driver be
removed.  As the staging driver wasn't quite working anyway, and Mimio
supports their libusb solution for all distros, I am removing the
in-kernel driver.

The libusb solution can be downloaded from:
	http://www.mimio.com/downloads/mimio_studio_software/linux.asp

Cc: <mwilder@cs.nmsu.edu>
Cc: Phil Hannent <phil@hannent.co.uk>
Cc: Marc Rousseau <Marc.Rousseau@mimio.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-15 09:06:07 -07:00
Peter Huewe
98f7978e32 Staging: wlan-ng: Add select WEXT_PRIV to Kconfig to prevent build failure
commit 8a8e29752d upstream.

Without WEXT_PRIV set the p80211wext.c fails to build due to unknown fields in
the iw_handler_def struct.
Those fields are enclosed in WEXT_PRIV conditionals in the prototype
of iw_handler_def in include/net/iw_handler.h

Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Acked-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-15 09:06:05 -07:00
Jens Axboe
6f72375ac0 Staging: Fixed pohmelfs regression because of per-bdi writeback.
commit 182374a0bd upstream.

Since pohmelfs isn't tied to a single block device, it needs to setup a
backing dev like nfs/btrfs/etc do.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-15 09:06:05 -07:00
Greg Kroah-Hartman
e5c79cb177 Staging: hv: match on DMI values to know if we should run.
commit c22090facd upstream.

The HV core mucks around with specific irqs and other low-level stuff
and takes forever to determine that it really shouldn't be running on a
machine.  So instead, trigger off of the DMI system information and
error out much sooner.  This also allows the module loading tools to
recognize that this code should be loaded on this type of system.

Cc: Haiyang Zhang <haiyangz@microsoft.com>
Cc: Hank Janssen <hjanssen@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-15 09:06:04 -07:00
Greg Kroah-Hartman
896d0d640c Staging: hv: add a pci device table
commit 9a775dbd4e upstream.

This allows the HV core to be properly found and autoloaded
by the system tools.

It uses the Microsoft virtual VGA device to trigger this.

Cc: Haiyang Zhang <haiyangz@microsoft.com>
Cc: Hank Janssen <hjanssen@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-15 09:06:03 -07:00
Ben Hutchings
ca3ee1cb47 SCSI: qla1280: Drop host_lock while requesting firmware
commit 2cec802980 upstream.

request_firmware() may sleep and it appears to be safe to release the
spinlock here.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-15 09:06:02 -07:00
Paul Mundt
95a8ed004d clocksource: Fix up a registration/IRQ race in the sh drivers.
commit da64c2a8de upstream.

All of the SH clocksource drivers follow the scheme that the IRQ is setup
prior to registering the clockevent. The interrupt handler in the
clockevent cases looks to the event handler function pointer being filled
in by the registration code, permitting us to get in to situations where
asserted IRQs step in to the handler before registration has had a chance
to complete and hitting a NULL pointer deref.

In practice this is not an issue for most platforms, but some of them
with fairly special loaders (or that are chain-loading from another
kernel) may enter in to this situation. This fixes up the oops reported
by Rafael on hp6xx.

Reported-and-tested-by: Rafael Ignacio Zurita <rafaelignacio.zurita@gmail.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-15 09:06:02 -07:00
Thomas Gleixner
8a2b4a7256 x86/PCI: Prevent mmconfig memory corruption
commit bb8d41330c upstream.

commit ff097ddd4 (x86/PCI: MMCONFIG: manage pci_mmcfg_region as a
list, not a table) introduced a nasty memory corruption when
pci_mmcfg_list is empty.

pci_mmcfg_check_end_bus_number() dereferences pci_mmcfg_list.prev even
when the list is empty. The following write hits some variable near to
pci_mmcfg_list.

Further down a similar problem exists, where cfg->list.next is
dereferenced unconditionally and a comparison with some variable near
to pci_mmcfg_list happens.

Add a check for the last element into the for_each_entry() loop and
remove all the other crappy logic which is just a leftover of the old
array based code which was replaced by the list conversion.

Reported-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Bjorn Helgaas <bjorn.helgaas@hp.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-15 09:06:00 -07:00
Aaro Koskinen
4d57ebd581 rtc-core: fix memory leak
commit 2a7a06a0cd upstream.

The idr should be destroyed when the module is unloaded. Found with
kmemleak.

Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-15 09:05:58 -07:00
Ming Lei
a7ca19cde1 ath9k: fix keycache leak in split tkip case
commit 733da37dab upstream.

If split tkip key is used, ath_delete_key should delete
rx key and rx mic key. This patch fixes the leak of hw
keycache in the case.

Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-15 09:05:58 -07:00
Jesse Barnes
42a89b24c7 drm/i915: give up on 8xx lid status
commit 7b9c5abee9 upstream.

These old machines more often than not lie about their lid state.  So
don't use it to detect LVDS presence, but leave the event handler to
deal with lid open/close, when we might need to reset the mode.

Fixes kernel bug #15248

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-15 09:05:56 -07:00
Jack Steiner
38050e8d4f x86, uv: uv_global_gru_mmr_address() macro fix
commit e1e0138d7d upstream.

Fix bug in uv_global_gru_mmr_address macro.  Macro failed
to cast an int value to a long prior to a left shift > 32.

Signed-off-by: Jack Steiner <steiner@sgi.com>
LKML-Reference: <20100107161240.GA2610@sgi.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-15 09:05:56 -07:00
Wu Fengguang
686056f1ef vfs: take f_lock on modifying f_mode after open time
commit 42e4960868 upstream.

We'll introduce FMODE_RANDOM which will be runtime modified.  So protect
all runtime modification to f_mode with f_lock to avoid races.

Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-15 09:05:56 -07:00
Theodore Kilgore
8635bb47c2 V4L/DVB (13991): gspca_mr973010a: Fix cif type 1 cameras not streaming on UHCI controllers
commit 70136081fc upstream.

If you read the mail to Oliver Neukum on the linux-usb list, then you know
that I found a cure for the mysterious problem that the MR97310a CIF "type
1" cameras have been freezing up and refusing to stream if hooked up to a
machine with a UHCI controller.

Namely, the cure is that if the camera is an mr97310a CIF type 1 camera, you
have to send it 0xa0, 0x00. Somehow, this is a timing reset command, or
such. It un-blocks whatever was previously stopping the CIF type 1 cameras
from working on the UHCI-based machines.

Signed-off-by: Theodore Kilgore <kilgota@auburn.edu>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-15 09:05:55 -07:00
Haicheng Li
0b7196b95e slab: initialize unused alien cache entry as NULL at alloc_alien_cache().
commit f3186a9c51 upstream.

Comparing with existing code, it's a simpler way to use kzalloc_node()
to ensure that each unused alien cache entry is NULL.

CC: Eric Dumazet <eric.dumazet@gmail.com>
Acked-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Christoph Lameter <cl@linux-foundation.org>
Acked-by: Matt Mackall <mpm@selenic.com>
Signed-off-by: Haicheng Li <haicheng.li@linux.intel.com>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-15 09:05:55 -07:00