Commit graph

336551 commits

Author SHA1 Message Date
Lad, Prabhakar
8d4b3f08a8 MAINTAINERS: Add entry for Davinci video drivers
This patch adds an entry in MAINTAINERS file for
TI Davinci media drivers.

Signed-off-by: Lad, Prabhakar <prabhakar.lad@ti.com>
Signed-off-by: Manjunath Hadli <manjunath.hadli@ti.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-11-21 15:20:19 -02:00
Alexey Klimov
889b2f8783 MAINTAINERS: add an entry for radio-mr800 driver
This patch adds MAINTAINERS entry for radio-mr800 usb radio driver.

Signed-off-by: Alexey Klimov <klimov.linux@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-11-21 15:20:12 -02:00
Sylwester Nawrocki
6fd86ab2df MAINTAINERS: Add entry for S3C24XX/S3C64XX SoC CAMIF driver
Signed-off-by: Sylwester Nawrocki <sylvester.nawrocki@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-11-21 15:20:02 -02:00
Sakari Ailus
e8e31622a1 MAINTAINERS: Update maintainer for smiapp and adp1653 drivers
And the smiapp-pll which is in a way part of the smiapp driver.

Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-11-21 15:19:55 -02:00
Murali Karicheri
1f5a5e62ae [media] media:davinci: clk - {prepare/unprepare} for common clk
As a first step towards migrating davinci platforms to use common clock
framework, replace all instances of clk_enable() with clk_prepare_enable()
and clk_disable() with clk_disable_unprepare().
Also fixes some issues related to clk clean up in the driver

Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Acked-by: Lad, Prabhakar <prabhakar.lad@ti.com>
Tested-by: Lad, Prabhakar <prabhakar.lad@ti.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-11-21 15:06:57 -02:00
Jiri Pirko
403f43c937 team: bcast: convert return value of team_dev_queue_xmit() to bool correctly
The thing is that team_dev_queue_xmit() returns NET_XMIT_* or -E*.
bc_trasmit() should return true in case all went well. So use ! to get
correct retval from team_dev_queue_xmit() result.
This bug caused iface statistics to be badly computed.

This bug was introduced by:
team: add broadcast mode (5fc889911a)

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-21 11:55:07 -05:00
Linus Torvalds
45e7715922 A simple pinctrl Kconfig oneliner arriving late.
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Merge tag 'pinctrl-for-v3.7-late' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull pinctrl fix from Linus Walleij:
 "A simple pinctrl Kconfig oneliner arriving late.

  Final (hopefully) oneliner for the pinctrl subsystem targeted at v3.7"

* tag 'pinctrl-for-v3.7-late' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
  pinctrl/samsung: don't allow enabling pinctrl-samsung standalone
2012-11-21 06:53:30 -10:00
Linus Torvalds
85c0805a8d Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull selinux RCU fixlet from James Morris.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
  selinux: fix sel_netnode_insert() suspicious rcu dereference
2012-11-21 06:52:35 -10:00
Chun-Yi Lee
916492b1e1 sign-file: fix the perl warning message when extracting ASN.1
There have the following warning message when running modules install
for sign ko files:

  # make modules_install
  ...
    INSTALL drivers/input/touchscreen/pcap_ts.ko
  Found = in conditional, should be == at scripts/sign-file line 164.
  Found = in conditional, should be == at scripts/sign-file line 161.
  Found = in conditional, should be == at scripts/sign-file line 159.

This patch change replace '=' by '==' in elsif conditions for avoid the
above warning messages.

Signed-off-by: Chun-Yi Lee <jlee@suse.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-11-21 06:52:12 -10:00
Sarveshwar Bandi
0e376bd0b7 bonding: Bonding driver does not consider the gso_max_size/gso_max_segs setting of slave devices.
Patch sets the lowest gso_max_size and gso_max_segs values of the slave devices during enslave and detach.

Signed-off-by: Sarveshwar Bandi <sarveshwar.bandi@emulex.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-21 11:50:31 -05:00
Ian Campbell
f36c374782 xen/netfront: handle compound page fragments on transmit
An SKB paged fragment can consist of a compound page with order > 0.
However the netchannel protocol deals only in PAGE_SIZE frames.

Handle this in xennet_make_frags by iterating over the frames which
make up the page.

This is the netfront equivalent to 6a8ed462f1 for netback.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: netdev@vger.kernel.org
Cc: xen-devel@lists.xen.org
Cc: Eric Dumazet <edumazet@google.com>
Cc: Konrad Rzeszutek Wilk <konrad@kernel.org>
Cc: ANNIE LI <annie.li@oracle.com>
Cc: Sander Eikelenboom <linux@eikelenboom.it>
Cc: Stefan Bader <stefan.bader@canonical.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-21 11:50:31 -05:00
John W. Linville
f30a944392 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem
John W. Linville says:

====================
This is a batch of fixes intended for 3.7...

Included are two pulls.  Regarding the mac80211 tree, Johannes says:

"Please pull my mac80211.git tree (see below) to get two more fixes for
3.7. Both fix regressions introduced *before* this cycle that weren't
noticed until now, one for IBSS not cleaning up properly and the other
to add back the "wireless" sysfs directory for Fedora's startup scripts."

Regarding the iwlwifi tree, Johannes says:

"Please also pull my iwlwifi.git tree, I have two fixes: one to remove a
spurious warning that can actually trigger in legitimate situations, and
the other to fix a regression from when monitor mode was changed to use
the "sniffer" firmware mode."

Also included is an nfc tree pull.  Samuel says:

"We mostly have pn533 fixes here, 2 memory leaks and an early unlocking fix.
Moreover, we also have an LLCP adapter linked list insertion fix."

On top of that, a few more bits...  Albert Pool adds a USB ID
to rtlwifi.  Bing Zhao provides two mwifiex fixes -- one to fix
a system hang during a command timeout, and the other to properly
report a suspend error to the MMC core.  Finally, Sujith Manoharan
fixes a thinko that would trigger an ath9k hang during device reset.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-21 11:48:31 -05:00
Lad, Prabhakar
d046628d2c [media] media: davinci: vpbe: set device capabilities
set device_caps and also change the driver and
bus_info to proper values as per standard.

Signed-off-by: Lad, Prabhakar <prabhakar.lad@ti.com>
Signed-off-by: Manjunath Hadli <manjunath.hadli@ti.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-11-21 14:47:54 -02:00
Kalle Jokiniemi
8b41669ceb mfd: twl4030: Fix chained irq handling on resume from suspend
The irqs are enabled one-by-one in pm core resume_noirq phase.
This leads to situation where the twl4030 primary interrupt
handler (PIH) is enabled before the chained secondary handlers
(SIH). As the PIH cannot clear the pending interrupt, and
SIHs have not been enabled yet, a flood of interrupts hangs
the device.

Fixed the issue by setting the SIH irqs with IRQF_EARLY_RESUME
flags, so they get enabled before the PIH.

Signed-off-by: Kalle Jokiniemi <kalle.jokiniemi@jollamobile.com>
Acked-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-21 17:46:41 +01:00
Lad, Prabhakar
13fc23d306 [media] media: davinci: vpbe: migrate driver to videobuf2
This patch migrates VPBE display driver to videobuf2 framework.

Signed-off-by: Lad, Prabhakar <prabhakar.lad@ti.com>
Signed-off-by: Manjunath Hadli <manjunath.hadli@ti.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-11-21 13:55:10 -02:00
Lad, Prabhakar
baa29837a7 [media] media: davinci: vpbe: fix build warning
Warnings were generated because of the following commit changed data type for
address pointer
195bbca ARM: 7500/1: io: avoid writeback addressing modes for __raw_ accessors
add  __iomem annotation to fix following warnings
drivers/media/platform/davinci/vpbe_osd.c: In function ‘osd_read’:
drivers/media/platform/davinci/vpbe_osd.c:49:2: warning: passing
 argument 1 of ‘__raw_readl’ makes pointer from integer without a cast [enabled by default]
arch/arm/include/asm/io.h:104:19: note: expected ‘const volatile
 void *’ but argument is of type ‘long unsigned int’
This patch stores the ioremap_nocache() returned address in a
void __iomem * instead of a unsigned long and passes the same to
readl/writel functions which fixes the above warnings.

Signed-off-by: Lad, Prabhakar <prabhakar.lad@ti.com>
Signed-off-by: Manjunath Hadli <manjunath.hadli@ti.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-11-21 13:53:28 -02:00
Sakari Ailus
8c5dff9057 [media] v4l, smiapp, smiapp-pll, adp1653: Update contact information
Update contact information to correspond my e-mail address changes.

Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-11-21 13:34:50 -02:00
YAMANE Toshiaki
792807140e [media] staging/media: Use dev_ printks in go7007/go7007-fw.c
fixed below checkpatch warning.
- WARNING: Prefer netdev_dbg(netdev, ... then dev_dbg(dev, ... then pr_debug(...  to printk(KERN_DEBUG ...
- WARNING: Prefer netdev_err(netdev, ... then dev_err(dev, ... then pr_err(...  to printk(KERN_ERR ...

Signed-off-by: YAMANE Toshiaki <yamanetoshi@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-11-21 13:33:12 -02:00
YAMANE Toshiaki
76705fe8e1 [media] staging/media: Use dev_ or pr_ printks in go7007/wis-saa7113.c
fixed below checkpatch warnings.
- WARNING: Prefer netdev_err(netdev, ... then dev_err(dev, ... then pr_err(...  to printk(KERN_ERR ...
- WARNING: Prefer netdev_dbg(netdev, ... then dev_dbg(dev, ... then pr_debug(...  to printk(KERN_DEBUG ...

Signed-off-by: YAMANE Toshiaki <yamanetoshi@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-11-21 13:19:11 -02:00
YAMANE Toshiaki
77f0773804 [media] Staging/media: fixed spacing coding style in go7007/wis-saa7113.c
fixed below checkpatch error.
- ERROR: that open brace { should be on the previous line

Signed-off-by: YAMANE Toshiaki <yamanetoshi@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-11-21 13:18:47 -02:00
YAMANE Toshiaki
f0e3393031 [media] staging/media: Use dev_ or pr_ printks in go7007/wis-saa7115.c
fixed below checkpatch warnings.
- WARNING: Prefer netdev_err(netdev, ... then dev_err(dev, ... then pr_err(...  to printk(KERN_ERR ...
- WARNING: Prefer netdev_dbg(netdev, ... then dev_dbg(dev, ... then pr_debug(...  to printk(KERN_DEBUG ...

Signed-off-by: YAMANE Toshiaki <yamanetoshi@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-11-21 13:16:04 -02:00
YAMANE Toshiaki
11f1c44d19 [media] Staging/media: fixed spacing coding style in go7007/wis-saa7115.c
fixed below checkpatch error.
- ERROR: that open brace { should be on the previous line

Signed-off-by: YAMANE Toshiaki <yamanetoshi@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-11-21 13:15:44 -02:00
YAMANE Toshiaki
b3ccce3831 [media] Staging/media: Use dev_ printks in go7007/wis-ov7640.c
fixed below checkpatch warnings.
- WARNING: Prefer netdev_dbg(netdev, ... then dev_dbg(dev, ... then pr_debug(...  to printk(KERN_DEBUG ...
- WARNING: Prefer netdev_err(netdev, ... then dev_err(dev, ... then pr_err(...  to printk(KERN_ERR ...

Signed-off-by: YAMANE Toshiaki <yamanetoshi@gmail.com>
Tested-by: Peter Senna Tschudin <peter.senna@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-11-21 13:15:00 -02:00
YAMANE Toshiaki
b07d650833 [media] Staging/media: fixed spacing coding style in go7007/wis-ov7640.c
fixed below checkpatch error.
- ERROR: that open brace { should be on the previous line

Signed-off-by: YAMANE Toshiaki <yamanetoshi@gmail.com>
Tested-by: Peter Senna Tschudin <peter.senna@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-11-21 13:14:28 -02:00
Sachin Kamat
70b9b24d4d ARM: S3C24XX: Fix potential NULL pointer dereference error
chan->end is tested for being NULL. However in the event that it is NULL, the
subsequent assignment statement would lead to NULL pointer dereference.
Thus dereferencing it only when it is not NULL.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-11-22 00:11:09 +09:00
Hans de Goede
f72c77a02f [media] gspca-sonixb: Add USB-id for Genius Eye 310
Reported through:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1046608
https://bugzilla.kernel.org/show_bug.cgi?id=48111

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-11-21 13:07:50 -02:00
Hans de Goede
39532e6c94 [media] MAINTAINERS: Add an entry for the pwc webcam driver
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-11-21 13:07:21 -02:00
Hans de Goede
c6c9b34c30 [media] MAINTAINERS: Add entries for the radioShark and radioShark2 drivers
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-11-21 13:07:01 -02:00
Hans de Goede
bb969707f9 [media] pwc: Fix codec1 cameras no longer working
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-11-21 13:05:57 -02:00
Frank Schäfer
2b34e9d1be [media] gspca_pac7302: use registers 0x01 and 0x03 for red and blue balance controls
Currently used registers 0xc5 and 0xc7 provide only a very coarse
adjustment possibility within a very small value range (0-3).
With registers 0x01 and 0x03, a fine grained adjustment with
255 steps is possible. This is also what the Windows driver does.

Signed-off-by: Frank Schäfer <fschaefer.oss@googlemail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-11-21 13:03:10 -02:00
Frank Schäfer
6f9b33123c [media] gspca_pac7302: correct register documentation
R,G,B balance registers are 0x01-0x03 instead of 0x02-0x04,
which lead to the wrong conclusion that values are inverted.
Exposure is controlled via page 3 registers and this is already documented.
Also fix a whitespace issue.

Signed-off-by: Frank Schäfer <fschaefer.oss@googlemail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-11-21 13:02:08 -02:00
Ezequiel Garcia
2902fb7e0c [media] stk1160: Try to continue with fewer transfer buffers
Many people are trying to use stk1160 on low memory devices.
Instead of failing if one allocation fails, we allow the driver
to continue working if fewer transfer buffers are available.

Signed-off-by: Ezequiel Garcia <elezegarcia@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-11-21 12:04:22 -02:00
Dave Jones
88a693b5c1 selinux: fix sel_netnode_insert() suspicious rcu dereference
===============================
[ INFO: suspicious RCU usage. ]
3.5.0-rc1+ #63 Not tainted
-------------------------------
security/selinux/netnode.c:178 suspicious rcu_dereference_check() usage!

other info that might help us debug this:

rcu_scheduler_active = 1, debug_locks = 0
1 lock held by trinity-child1/8750:
 #0:  (sel_netnode_lock){+.....}, at: [<ffffffff812d8f8a>] sel_netnode_sid+0x16a/0x3e0

stack backtrace:
Pid: 8750, comm: trinity-child1 Not tainted 3.5.0-rc1+ #63
Call Trace:
 [<ffffffff810cec2d>] lockdep_rcu_suspicious+0xfd/0x130
 [<ffffffff812d91d1>] sel_netnode_sid+0x3b1/0x3e0
 [<ffffffff812d8e20>] ? sel_netnode_find+0x1a0/0x1a0
 [<ffffffff812d24a6>] selinux_socket_bind+0xf6/0x2c0
 [<ffffffff810cd1dd>] ? trace_hardirqs_off+0xd/0x10
 [<ffffffff810cdb55>] ? lock_release_holdtime.part.9+0x15/0x1a0
 [<ffffffff81093841>] ? lock_hrtimer_base+0x31/0x60
 [<ffffffff812c9536>] security_socket_bind+0x16/0x20
 [<ffffffff815550ca>] sys_bind+0x7a/0x100
 [<ffffffff816c03d5>] ? sysret_check+0x22/0x5d
 [<ffffffff810d392d>] ? trace_hardirqs_on_caller+0x10d/0x1a0
 [<ffffffff8133b09e>] ? trace_hardirqs_on_thunk+0x3a/0x3f
 [<ffffffff816c03a9>] system_call_fastpath+0x16/0x1b

This patch below does what Paul McKenney suggested in the previous thread.

Signed-off-by: Dave Jones <davej@redhat.com>
Reviewed-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Paul Moore <paul@paul-moore.com>
Cc: Eric Paris <eparis@parisplace.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Morris <james.l.morris@oracle.com>
2012-11-21 21:55:32 +11:00
David Woodhouse
851462444d Merge branch 'for-3.7' of git://git.infradead.org/users/dedekind/l2-mtd
Conflicts:
	drivers/mtd/nand/nand_base.c
2012-11-21 10:38:13 +00:00
Emmanuel Grumbach
5edd0b946a iwlwifi: fix the basic CCK rates calculation
Fix a copy paste error in iwl_calc_basic_rates which leads
to a wrong calculation of CCK basic rates.

Cc: stable@vger.kernel.org
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-21 11:31:21 +01:00
David Henningsson
34c3d1926b ALSA: hda - Cirrus: Correctly clear line_out_pins when moving to speaker
If this array is not cleared, the jack related code later might
fail to create "Internal Speaker Phantom Jack" on Dell Inspiron 3420 and
Dell Vostro 2420.

BugLink: https://bugs.launchpad.net/bugs/1076840
Cc: stable@vger.kernel.org (3.6+)
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-11-21 10:09:02 +01:00
David Henningsson
af02dde8a6 ALSA: hda - Add support for Realtek ALC292
We found a new codec ID 292, and that just a simple quirk would enable
sound output/input on this ALC292 chip.

BugLink: https://bugs.launchpad.net/bugs/1081466
Cc: stable@vger.kernel.org
Tested-by: Acelan Kao <acelan.kao@canonical.com>
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-11-21 09:06:04 +01:00
Jan Beulich
ee4eb87be2 x86-64: Fix ordering of CFI directives and recent ASM_CLAC additions
While these got added in the right place everywhere else, entry_64.S
is the odd one where they ended up before the initial CFI directive(s).
In order to cover the full code ranges, the CFI directive must be
first, though.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Link: http://lkml.kernel.org/r/5093BA1F02000078000A600E@nat28.tlf.novell.com
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2012-11-20 22:23:57 -08:00
Boris Ostrovsky
36c46ca4f3 x86, microcode, AMD: Add support for family 16h processors
Add valid patch size for family 16h processors.

[ hpa: promoting to urgent/stable since it is hw enabling and trivial ]

Signed-off-by: Boris Ostrovsky <boris.ostrovsky@amd.com>
Acked-by: Andreas Herrmann <herrmann.der.user@googlemail.com>
Link: http://lkml.kernel.org/r/1353004910-2204-1-git-send-email-boris.ostrovsky@amd.com
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Cc: <stable@vger.kernel.org>
2012-11-20 22:23:28 -08:00
H. Peter Anvin
cb57a2b4cf x86-32: Export kernel_stack_pointer() for modules
Modules, in particular oprofile (and possibly other similar tools)
need kernel_stack_pointer(), so export it using EXPORT_SYMBOL_GPL().

Cc: Yang Wei <wei.yang@windriver.com>
Cc: Robert Richter <robert.richter@amd.com>
Cc: Jun Zhang <jun.zhang@intel.com>
Cc: <stable@vger.kernel.org>
Link: http://lkml.kernel.org/r/20120912135059.GZ8285@erda.amd.com
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2012-11-20 22:23:23 -08:00
Robert Richter
1022623842 x86-32: Fix invalid stack address while in softirq
In 32 bit the stack address provided by kernel_stack_pointer() may
point to an invalid range causing NULL pointer access or page faults
while in NMI (see trace below). This happens if called in softirq
context and if the stack is empty. The address at &regs->sp is then
out of range.

Fixing this by checking if regs and &regs->sp are in the same stack
context. Otherwise return the previous stack pointer stored in struct
thread_info. If that address is invalid too, return address of regs.

 BUG: unable to handle kernel NULL pointer dereference at 0000000a
 IP: [<c1004237>] print_context_stack+0x6e/0x8d
 *pde = 00000000
 Oops: 0000 [#1] SMP
 Modules linked in:
 Pid: 4434, comm: perl Not tainted 3.6.0-rc3-oprofile-i386-standard-g4411a05 #4 Hewlett-Packard HP xw9400 Workstation/0A1Ch
 EIP: 0060:[<c1004237>] EFLAGS: 00010093 CPU: 0
 EIP is at print_context_stack+0x6e/0x8d
 EAX: ffffe000 EBX: 0000000a ECX: f4435f94 EDX: 0000000a
 ESI: f4435f94 EDI: f4435f94 EBP: f5409ec0 ESP: f5409ea0
  DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
 CR0: 8005003b CR2: 0000000a CR3: 34ac9000 CR4: 000007d0
 DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000
 DR6: ffff0ff0 DR7: 00000400
 Process perl (pid: 4434, ti=f5408000 task=f5637850 task.ti=f4434000)
 Stack:
  000003e8 ffffe000 00001ffc f4e39b00 00000000 0000000a f4435f94 c155198c
  f5409ef0 c1003723 c155198c f5409f04 00000000 f5409edc 00000000 00000000
  f5409ee8 f4435f94 f5409fc4 00000001 f5409f1c c12dce1c 00000000 c155198c
 Call Trace:
  [<c1003723>] dump_trace+0x7b/0xa1
  [<c12dce1c>] x86_backtrace+0x40/0x88
  [<c12db712>] ? oprofile_add_sample+0x56/0x84
  [<c12db731>] oprofile_add_sample+0x75/0x84
  [<c12ddb5b>] op_amd_check_ctrs+0x46/0x260
  [<c12dd40d>] profile_exceptions_notify+0x23/0x4c
  [<c1395034>] nmi_handle+0x31/0x4a
  [<c1029dc5>] ? ftrace_define_fields_irq_handler_entry+0x45/0x45
  [<c13950ed>] do_nmi+0xa0/0x2ff
  [<c1029dc5>] ? ftrace_define_fields_irq_handler_entry+0x45/0x45
  [<c13949e5>] nmi_stack_correct+0x28/0x2d
  [<c1029dc5>] ? ftrace_define_fields_irq_handler_entry+0x45/0x45
  [<c1003603>] ? do_softirq+0x4b/0x7f
  <IRQ>
  [<c102a06f>] irq_exit+0x35/0x5b
  [<c1018f56>] smp_apic_timer_interrupt+0x6c/0x7a
  [<c1394746>] apic_timer_interrupt+0x2a/0x30
 Code: 89 fe eb 08 31 c9 8b 45 0c ff 55 ec 83 c3 04 83 7d 10 00 74 0c 3b 5d 10 73 26 3b 5d e4 73 0c eb 1f 3b 5d f0 76 1a 3b 5d e8 73 15 <8b> 13 89 d0 89 55 e0 e8 ad 42 03 00 85 c0 8b 55 e0 75 a6 eb cc
 EIP: [<c1004237>] print_context_stack+0x6e/0x8d SS:ESP 0068:f5409ea0
 CR2: 000000000000000a
 ---[ end trace 62afee3481b00012 ]---
 Kernel panic - not syncing: Fatal exception in interrupt

V2:
* add comments to kernel_stack_pointer()
* always return a valid stack address by falling back to the address
  of regs

Reported-by: Yang Wei <wei.yang@windriver.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Robert Richter <robert.richter@amd.com>
Link: http://lkml.kernel.org/r/20120912135059.GZ8285@erda.amd.com
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Cc: Jun Zhang <jun.zhang@intel.com>
2012-11-20 22:23:20 -08:00
Takashi Iwai
789e05275e ASoC: Fixes for v3.7
The biggest batch of fixes here is the Kirkwood DMA fixes, plus a couple
 of other small fixes.
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Merge tag 'asoc-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Fixes for v3.7

The biggest batch of fixes here is the Kirkwood DMA fixes, plus a couple
of other small fixes.
2012-11-21 07:18:11 +01:00
Linus Torvalds
99b6e1e723 Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Pull missed powerpc fixes from Benjamin Herrenschmidt:
 "Here are small 52xx fixes that Anatolij asked me to pull a while back
  and that I completely missed.  The stuff is local to that platform
  code, and was in next for a while, so it should still go into 3.7."

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
  powerpc/mpc5200: move lpbfifo node and fix its interrupt property
  powerpc: 52xx: nop out unsupported critical IRQs
  powerpc/pcm030: add pcm030-audio-fabric to dts
2012-11-20 18:53:26 -10:00
Linus Torvalds
74dcc3f904 Bug-fix:
- Fix regression introduced by ceb90fa0 (xen/privcmd: add
    PRIVCMD_MMAPBATCH_V2 ioctl).
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Merge tag 'stable/for-linus-3.7-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen

Pull Xen bug-fix from Konrad Rzeszutek Wilk:
 - Fix regression introduced by commit ceb90fa0a8 ("xen/privcmd: add
   PRIVCMD_MMAPBATCH_V2 ioctl").

* tag 'stable/for-linus-3.7-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
  xen/privcmd: Correctly return success from IOCTL_PRIVCMD_MMAPBATCH
2012-11-20 18:52:01 -10:00
Linus Torvalds
87885b700b Merge git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM maintainership update from Avi Kivity:
 "After many years of maintaining KVM, I am moving on.  It was a real
  pleasure for me to work with so many talented and dedicated hackers on
  this project.

  Replacing me will be one of those talented and dedicated hackers,
  Gleb, who has authored hundreds of patches in and around KVM."

* git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: taking co-maintenance
  KVM: Retire as maintainer
2012-11-20 18:50:07 -10:00
Linus Torvalds
c60b689631 IOMMU fixes for Linux 3.7-rc6
Some fixes and a MAINTAINERS update to remove my lost AMD email address
 from the file. The fixes take care of a resource leak and a problem on
 VT-d with the new IOMMU group code.
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Merge tag 'iommu-fixes-v3.7-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

Pull IOMMU fixes from Joerg Roedel:
 "Some fixes and a MAINTAINERS update to remove my lost AMD email
  address from the file.  The fixes take care of a resource leak and a
  problem on VT-d with the new IOMMU group code."

* tag 'iommu-fixes-v3.7-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
  intel-iommu: Fix lookup in add device
  iommu/tegra-smmu.c: fix dentry reference leak in smmu_debugfs_stats_show().
  iommu/amd: Update MAINTAINERS entry
2012-11-20 18:49:32 -10:00
Linus Torvalds
ca6215dfc7 Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Pull reiserfs and ext3 fixes from Jan Kara:
 "Fixes of reiserfs deadlocks when quotas are enabled (locking there was
  completely busted by BKL conversion) and also one small ext3 fix in
  the trim interface."

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
  ext3: Avoid underflow of in ext3_trim_fs()
  reiserfs: Move quota calls out of write lock
  reiserfs: Protect reiserfs_quota_write() with write lock
  reiserfs: Protect reiserfs_quota_on() with write lock
  reiserfs: Fix lock ordering during remount
2012-11-20 18:48:25 -10:00
Mark Brown
a6366c519c Merge branches 'fix/arizona', 'fix/cs4271', 'fix/kirkwood' and 'fix/samsung' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into tmp 2012-11-21 11:41:15 +09:00
Mats Petersson
68fa965dd9 xen/privcmd: Correctly return success from IOCTL_PRIVCMD_MMAPBATCH
This is a regression introduced by ceb90fa0 (xen/privcmd: add
PRIVCMD_MMAPBATCH_V2 ioctl).  It broke xentrace as it used
xc_map_foreign() instead of xc_map_foreign_bulk().

Most code-paths prefer the MMAPBATCH_V2, so this wasn't very obvious
that it broke. The return value is set early on to -EINVAL, and if all
goes well, the "set top bits of the MFN's" never gets called, so the
return value is still EINVAL when the function gets to the end, causing
the caller to think it went wrong (which it didn't!)

Now also including Andres "move the ret = -EINVAL into the error handling
path, as this avoids other similar errors in future.

Signed-off-by: Mats Petersson <mats.petersson@citrix.com>
Acked-by: Andres Lagar-Cavilla <andres@lagarcavilla.org>
Acked-by: David Vrabel <david.vrabel@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2012-11-20 21:25:36 -05:00
Benjamin Herrenschmidt
d6dc24613c Merge remote-tracking branch 'agust/merge' into merge
Anatolij 52xx updates:

Patch for pcm030 device tree fixing the probe() in pcm030-audio-fabric
driver. Changes to this driver have been merged in 3.7-rc1 via ASoC
tree, but this required device tree patch was submitted separately to
the linux-ppc list and is still missing in mainline. Without this patch
the probe() in pcm030-audio-fabric driver wrongly returns -ENODEV.

A patch from Wolfram fixing wrong invalid critical irq warnings for
all mpc5200 boards.

Another patch for all mpc5200 device trees fixing wrong L1 cell in
the LPB FIFO interrupt property and moving the LPB FIFO node to the
common mpc5200b.dtsi file so that this common node will be present
in all mpc5200 device trees.
2012-11-21 13:24:49 +11:00