Commit Graph

335842 Commits

Author SHA1 Message Date
Xiaotian Feng 71c6c837a0 drivers/net: fix tasklet misuse issue
In commit 175c0dff, drivers uses tasklet_kill to avoid put disabled tasklet
on the tasklet vec. But some of the drivers uses tasklet_init & tasklet_disable
in the driver init code, then tasklet_enable when it is opened. This makes
tasklet_enable on a killed tasklet and make ksoftirqd crazy then. Normally,
drivers should use tasklet_init/tasklet_kill on device open/remove, and use
tasklet_disable/tasklet_enable on device suspend/resume.

Reported-by: Peter Wu <lekensteyn@gmail.com>
Tested-by: Peter Wu <lekensteyn@gmail.com>
Signed-off-by: Xiaotian Feng <dannyfeng@tencent.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-14 21:50:10 -05:00
Saurabh Mohan b2942004fb ipv4/ip_vti.c: VTI fix post-decryption forwarding
With the latest kernel there are two things that must be done post decryption
 so that the packet are forwarded.
 1. Remove the mark from the packet. This will cause the packet to not match
 the ipsec-policy again. However doing this causes the post-decryption check to
 fail also and the packet will get dropped. (cat /proc/net/xfrm_stat).
 2. Remove the sp association in the skbuff so that no policy check is done on
 the packet for VTI tunnels.

Due to #2 above we must now do a security-policy check in the vti rcv path
prior to resetting the mark in the skbuff.

Signed-off-by: Saurabh Mohan <saurabh.mohan@vyatta.com>
Reported-by: Ruben Herold <ruben@puettmann.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-14 21:40:21 -05:00
Colin Ian King 70a6f46d7b pstore: Fix NULL pointer dereference in console writes
Passing a NULL id causes a NULL pointer deference in writers such as
erst_writer and efi_pstore_write because they expect to update this id.
Pass a dummy id instead.

This avoids a cascade of oopses caused when the initial
pstore_console_write passes a null which in turn causes writes to the
console causing further oopses in subsequent pstore_console_write calls.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Kees Cook <keescook@chromium.org>
Cc: stable@vger.kernel.org
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
2012-11-14 18:30:21 -08:00
Mark Brown ecb48c337b Merge remote-tracking branches 'regulator/fix/gpio', 'regulator/fix/put' and 'regulator/fix/supp-volt' into tmp 2012-11-15 11:16:02 +09:00
Marek Szyprowski f0f98b19e2 regulator: fix voltage check in regulator_is_supported_voltage()
regulator_is_supported_voltage() should return true only if the voltage
of fixed/constant regulator is between min_uV and max_uV.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@vger.kernel.org
2012-11-15 11:14:18 +09:00
Axel Lin 1838b8c487 tty: serial: max310x: Add terminating entry for spi_device_id table
The spi_device_id table is supposed to be zero-terminated.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-14 14:49:42 -08:00
Linus Torvalds 79e979eae0 Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux
Pull power tools fixes from Len Brown:
 "A pair of power tools patches -- a 3.7 regression fix plus a bug fix."

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux:
  tools/power turbostat: graceful fail on garbage input
  tools/power turbostat: Repair Segmentation fault when using -i option
2012-11-14 13:46:40 -08:00
Linus Torvalds f0c391131a Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS update from Ralf Baechle:
 "To avoid unnecessary risk and work the preemption fixes are combined
  with some preparatory work that isn't strictly required.  So it's
  really just 3 fixes:

   - Get is_compat_task() to do the right thing while simplifying it.
     The unnecessary complexity hid a rarely striking bug which could be
     triggered by ext3/ext4 under certain circumstances.
   - Resolve a preemption issue in the irqflags.h functions for kernels
     built to support pre-MIPS32 / pre-MIPS64 Release 2 processors.
   - Fix the interrupt number of the MIPS Malta's CBUS UART."

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
  MIPS: Malta: Fix interupt number of CBUS UART.
  MIPS: Make irqflags.h functions preempt-safe for non-mipsr2 cpus
  MIPS: Remove irqflags.h dependency from bitops.h
  MIPS: bitops.h: Change use of 'unsigned short' to 'int'
  MIPS: compat: Delete now unused TIF_32BIT.
  MIPS: compat: Implement is_compat_task() by testing for 32-bit address space.
  MIPS: compat: Fix use of TIF_32BIT_ADDR vs _TIF_32BIT_ADDR
2012-11-14 13:45:23 -08:00
Linus Torvalds 1e096209da Merge branch 'for-3.7-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
Pull cgroup fixes from Tejun Heo:
 "This contains two fix patches for device_cgroup.  One fixes a
  regression introduced earlier in 3.7 cycle where device_cgroup could
  try to dereference the NULL parent of the root cgroup.  The other one
  is RCU usage fix."

* 'for-3.7-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
  device_cgroup: fix RCU usage
  device_cgroup: fix unchecked cgroup parent usage
2012-11-14 13:44:04 -08:00
Paul Mackerras c019bc119a TTY: hvc_console, fix port reference count going to zero prematurely
Commit bdb498c200 "TTY: hvc_console, add tty install" took the port
refcounting out of hvc_open()/hvc_close(), but failed to remove the
kref_put() and tty_kref_put() calls in hvc_hangup() that were there to
remove the extra references that hvc_open() had taken.

The result was that doing a vhangup() when the current terminal was
a hvc_console, then closing the current terminal, would end up calling
destroy_hvc_struct() and making the port disappear entirely.  This
meant that Fedora 17 systems would boot up but then not display the
login prompt on the console, and attempts to open /dev/hvc0 would
give a "No such device" error.

This fixes it by removing the extra kref_put() and tty_kref_put() calls.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Acked-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-14 12:27:29 -08:00
Hauke Mehrtens d61f978b8f brcmfmac: fix typo in CONFIG_BRCMISCAN
The old ifdef CONFIG_BRCMFISCAN looks wrong to me and it makes more
sense when CONFIG_BRCMISCAN is used.
This patch was just compile tested by me, but not runtime tested.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Acked-by: Franky Lin <frankyl@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-11-14 14:25:44 -05:00
John W. Linville 485f2b7f5f Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth 2012-11-14 14:17:58 -05:00
John W. Linville e734207fee Merge branch 'for-john' of git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-fixes 2012-11-14 14:16:54 -05:00
John W. Linville bd2a813074 Merge branch 'for-john' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211 2012-11-14 14:15:43 -05:00
Takashi Iwai 10e44239f6 ALSA: usb-audio: Fix mutex deadlock at disconnection
The recent change for USB-audio disconnection race fixes introduced a
mutex deadlock again.  There is a circular dependency between
chip->shutdown_rwsem and pcm->open_mutex, depicted like below, when a
device is opened during the disconnection operation:

A. snd_usb_audio_disconnect() ->
     card.c::register_mutex ->
       chip->shutdown_rwsem (write) ->
         snd_card_disconnect() ->
           pcm.c::register_mutex ->
             pcm->open_mutex

B. snd_pcm_open() ->
     pcm->open_mutex ->
       snd_usb_pcm_open() ->
         chip->shutdown_rwsem (read)

Since the chip->shutdown_rwsem protection in the case A is required
only for turning on the chip->shutdown flag and it doesn't have to be
taken for the whole operation, we can reduce its window in
snd_usb_audio_disconnect().

Reported-by: Jiri Slaby <jslaby@suse.cz>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-11-14 15:29:09 +01:00
Charles Keepax 23ff2f0f61 regulator: core: Avoid deadlock when regulator_register fails
When regulator_register fails and exits through the scrub path the
regulator_put function was called whilst holding the
regulator_list_mutex, causing deadlock.

This patch adds a private version of the regulator_put function which
can be safely called whilst holding the mutex, replacing the
aforementioned call.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-11-14 19:01:15 +09:00
Dan Carpenter effded75e2 ALSA: fm801: precedence bug in snd_fm801_tea575x_get_pins()
There is a precedence bug because | has higher precedence than ?:.  This
code was cut and pasted and I fixed a similar bug a few days ago.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-11-14 09:34:28 +01:00
Alexander Duyck 1ba56fb45a vxlan: Update hard_header_len based on lowerdev when instantiating VXLAN
In the event of a VXLAN device being linked to a device that has a
hard_header_len greater than that of standard ethernet we could end up with
the hard_header_len not being large enough for outgoing frames.  In order to
prevent this we should update the length when a lowerdev is provided.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Acked-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-13 18:19:50 -05:00
Rami Rosen eb5ce43997 vxlan: fix a typo.
Use eXtensible and not eXtensiable in the comment on top.

Signed-off-by: Rami Rosen <ramirose@gmail.com>
Acked-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-13 17:14:06 -05:00
Guenter Roeck aa1e3e81e7 i2c-mux-pinctrl: Fix probe error path
When allocating the memory for i2c busses, the code checked the wrong
variable and thus never detected if there was a memory error.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Cc: stable@vger.kernel.org
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2012-11-13 22:27:19 +01:00
Jean Delvare d85c8a6ab2 MAINTAINERS: i2c: 7 years, this is it
I have been maintaining the i2c subsystem for 7 years now, it's about
time to let someone else take over. Just before I leave, I would like
to thank several individuals who made this possible at all:

* Greg Kroah-Hartman, for his faith in my potential subsystem
  maintainer skills. Greg, I hope I met your expectations.
* Late David Brownell, for helping me convert the i2c subsystem to the
  standard device driver model. Rest in peace David, we're missing you.
* Ben Dooks, for stepping in when I asked for someone to take care of
  the huge flow of new i2c adapter drivers for embedded systems.
* Wolfram Sang, for joining the crew when it became clear that there
  was more review work than Ben and myself could deal with.

I hope I did not forget anyone, please forgive me if I did.

Another big thank is due to Wolfram again, who quickly proposed to
take over as the main i2c subsystem maintainer. This will allow for a
smooth and fast transition.

Note that I will keep maintaining all I2C/SMBus controller drivers for
PC systems as well as a few others. I am hereby updating MAINTAINERS
accordingly. I'll also keep maintaining user-space i2c-tools.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Ben Dooks <ben-linux@fluff.org>
Acked-by: Wolfram Sang <w.sang@pengutronix.de>
2012-11-13 22:27:19 +01:00
Colin Cross d38e0e3fed Revert "Staging: Android alarm: IOCTL command encoding fix"
Commit 6bd4a5d96c changed the
ANDROID_ALARM_GET_TIME ioctls from IOW to IOR.  While technically
correct, the _IOC_DIR bits are ignored by alarm_ioctl, so the
commit breaks a userspace ABI used by all existing Android devices
for a purely cosmetic reason.  Revert it.

Cc: stable <stable@vger.kernel.org>
Cc: Dae S. Kim <dae@velatum.com>
Signed-off-by: Colin Cross <ccross@android.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-13 13:04:43 -08:00
Hannes Frederic Sowa d4596bad2a ipv6: setsockopt(IPIPPROTO_IPV6, IPV6_MINHOPCOUNT) forgot to set return value
Cc: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-13 14:38:47 -05:00
Kirill Smelkov 73e212fc48 doc/net: Fix typo in netdev-features.txt
Signed-off-by: Kirill Smelkov <kirr@mns.spb.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-13 14:37:48 -05:00
Alexander Duyck 52b702ffa5 vxlan: Fix error that was resulting in VXLAN MTU size being 10 bytes too large
This change fixes an issue I found where VXLAN frames were fragmented when
they were up to the VXLAN MTU size.  I root caused the issue to the fact that
the headroom was 4 + 20 + 8 + 8.  This math doesn't appear to be correct
because we are not inserting a VLAN header, but instead a 2nd Ethernet header.
As such the math for the overhead should be 20 + 8 + 8 + 14 to account for the
extra headers that are inserted for VXLAN.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-13 14:36:50 -05:00
Eric Dumazet bd090dfc63 tcp: tcp_replace_ts_recent() should not be called from tcp_validate_incoming()
We added support for RFC 5961 in latest kernels but TCP fails
to perform exhaustive check of ACK sequence.

We can update our view of peer tsval from a frame that is
later discarded by tcp_ack()

This makes timestamps enabled sessions vulnerable to injection of
a high tsval : peers start an ACK storm, since the victim
sends a dupack each time it receives an ACK from the other peer.

As tcp_validate_incoming() is called before tcp_ack(), we should
not peform tcp_replace_ts_recent() from it, and let callers do it
at the right time.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Neal Cardwell <ncardwell@google.com>
Cc: Yuchung Cheng <ycheng@google.com>
Cc: Nandita Dukkipati <nanditad@google.com>
Cc: H.K. Jerry Chu <hkchu@google.com>
Cc: Romain Francoise <romain@orebokech.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-13 14:35:17 -05:00
Bjørn Mork bbc8d9228e net: cdc_ncm: add Huawei devices
A number of Huawei 3G and LTE modems implement a CDC NCM function,
including the necessary functional descriptors, but using a non
standard interface layout and class/subclass/protocol codes.

These devices can be handled by this driver with only a minor
change to the probing logic, allowing a single combined control
and data interface.  This works because the devices
- include a CDC Union descriptor labelling the combined
  interface as both master and slave, and
- have an alternate setting #1 for the bulk endpoints on the
  combined interface.

The 3G/LTE network connection is managed by vendor specific AT
commands on a serial function in the same composite device.
Handling the managment function is out of the scope of this
driver.  It will be handled by an appropriate USB serial
driver.

Reported-and-Tested-by: Olof Ermis <olof.ermis@gmail.com>
Reported-and-Tested-by: Tommy Cheng <tommy7765@yahoo.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-13 14:33:28 -05:00
Ursula Braun 7702745b15 qeth: set new mac even if old mac is gone
If the set_mac_address() function of qeth is invoked, qeth deletes
the old mac address first on OSA. Only if deletion returns
successfully the new mac address is set on OSA. Deletion may return
with a return value "MAC not found on OSA". In this case qeth
should continue setting the new mac address.

When the OSA cable is pulled, OSA forgets any set mac address. If
the OSA network interface acts as a slave to a bonding master
interface, bonding can invoke the set_mac_address function for
failover purposes and depends on successful setting of the new mac
address even though the old mac address could no longer be deleted.

Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-13 14:31:21 -05:00
Stefan Raspl a134884ac0 qeth: Fix IPA_CMD_QIPASSIST return code handling
Return codes of IPA_CMD_QIPASSIST are not checked, especially the ones which
indicate that the command is not supported. As a result, the device driver
would not enable all available features on older card generations.
This patch adds proper checking and sets the bare minimum in the supported
functions flags to avoid follow-on errors.

Signed-off-by: Stefan Raspl <raspl@linux.vnet.ibm.com>
Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Reviewed-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-13 14:31:21 -05:00
Steve Glendinning 80928805ba smsc95xx: set MII_BUSY bit to read/write PHY regs
The device datasheet specifies the BUSY bit must be set when reading
or writing phy registers.  This patch ensures we do that.

Signed-off-by: Steve Glendinning <steve.glendinning@shawell.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-13 14:25:50 -05:00
Greg Kroah-Hartman e592c5d0b7 Revert "USB/host: Cleanup unneccessary irq disable code"
This reverts commit 73d4066055.

Martin Steigerwald reported that this change caused a hard lockup when
using USB if threadirqs are enabled.  Thomas pointed out that this patch
is incorrect, and can cause problems.  So revert it to get the
previously working functionality back.

Reported-by: Martin Steigerwald <Martin@lichtvoll.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Chuansheng Liu <chuansheng.liu@intel.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-13 10:52:52 -08:00
Dan Williams c0bc309887 USB: option: add Alcatel X220/X500D USB IDs
Signed-off-by: Dan Williams <dcbw@redhat.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-13 10:45:16 -08:00
Dan Williams fcb21645f1 USB: option: add Novatel E362 and Dell Wireless 5800 USB IDs
The Dell 5800 appears to be a simple rebrand of the Novatel E362.

Signed-off-by: Dan Williams <dcbw@redhat.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-13 10:45:16 -08:00
Bjørn Mork f0e3e35c90 USB: keyspan: fix typo causing GPF on open
Commit f79b2d0f (USB: keyspan: fix NULL-pointer dereferences and
memory leaks) had a small typo which made the driver use wrong
offsets when mapping serial port private data.  This results in
in a GPF when the port is opened.

Reported-by: Richard <richjunk@pacbell.net>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Acked-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-13 10:45:16 -08:00
Ralf Baechle 225ae5fd9a MIPS: Malta: Fix interupt number of CBUS UART.
The CBUS UART's interrupt number was wrong conflicting with the interrupt
being tied to the Intel PIIX4.  Since the PIIX4's interrupt is registered
before the CBUS UART which is not being used on most systems this would
not be noticed.

Attempts to open the ttyS2 CBUS UART would result in:

genirq: Flags mismatch irq 18. 00000000 (serial) vs. 00010000 (XT-PIC cascade)
serial_link_irq_chain: request failed: -16 for irq: 18

Qemu was written to match the kernel so will need to be fixed also.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-11-13 14:50:15 +01:00
Jani Nikula 2f4f649a69 drm/i915: do not ignore eDP bpc settings from vbt
There are laptops out there that need the eDP bpc from VBT. This is
effectively a revert of

commit 4344b813f1
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Fri Aug 10 11:10:20 2012 +0200

    drm/i915: ignore eDP bpc settings from vbt

but putting the VBT check after the EDID check to see them both in dmesg if
this clamps more than the EDID. We have enough history with bpc clamping to
warrant the extra debug info.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=47641
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=56401
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-11-13 13:15:42 +01:00
Heiko Carstens 4bffbb3455 s390/mm: have 16 byte aligned struct pages
Select HAVE_ALIGNED_STRUCT_PAGE on s390, so that the slub allocator can make
use of compare and swap double for lockless updates. This increases the size
of struct page to 64 bytes (instead of 56 bytes), however the performance gain
justifies the increased size:

- now excactly four struct pages fit into a single cache line; the
  case that accessing a struct page causes two cache line loads
  does not exist anymore.
- calculating the offset of a struct page within the memmap array
  is only a simple shift instead of a more expensive multiplication.

A "hackbench 200 process 200" run on a 32 cpu system did show an 8% runtime
improvement.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2012-11-13 11:03:09 +01:00
Heiko Carstens 516bad44b9 s390/gup: fix access_ok() usage in __get_user_pages_fast()
access_ok() returns always "true" on s390. Therefore all access_ok()
invocations are rather pointless.
However when walking page tables we need to make sure that everything
is within bounds of the ASCE limit of the task's address space.
So remove the access_ok() call and add the same check we have in
get_user_pages_fast().

Reviewed-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2012-11-13 11:02:28 +01:00
Heiko Carstens d55c4c613f s390/gup: add missing TASK_SIZE check to get_user_pages_fast()
When walking page tables we need to make sure that everything
is within bounds of the ASCE limit of the task's address space.
Otherwise we might calculate e.g. a pud pointer which is not
within a pud and dereference it.
So check against TASK_SIZE (which is the ASCE limit) before
walking page tables.

Reviewed-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Cc: stable@vger.kernel.org
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2012-11-13 11:02:26 +01:00
Dan Carpenter d2153a1595 ALSA: es1968: precedence bug in snd_es1968_tea575x_get_pins()
I don't think this works as intended.  '|' higher precedence than ?: so
the bitwize OR "0 | (val & STR_MOST)" is a no-op.

I have re-written it to be more clear.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-11-13 08:51:47 +01:00
Takashi Iwai 6214b54cbf ASoC: Fixes for v3.7
A few small fixes plus a large but simple change for WM5102 which writes
 out a bunch of register updates to the device when we enable the clock
 as recommended following chip evaluation.
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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

A few small fixes plus a large but simple change for WM5102 which writes
out a bunch of register updates to the device when we enable the clock
as recommended following chip evaluation.
2012-11-13 07:48:07 +01:00
Mark Brown ba027da8eb Merge branches 'fix/arizona', 'fix/core', 'fix/cs42l52', 'fix/mxs', 'fix/samsung' and 'fix/wm8978' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into tmp 2012-11-13 15:13:29 +09:00
Linus Torvalds 9924a1992a Merge git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM fix from Marcelo Tosatti:
 "A correction for user triggerable oops"

* git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: x86: invalid opcode oops on SET_SREGS with OSXSAVE bit set (CVE-2012-4461)
2012-11-12 17:37:53 -08:00
Linus Torvalds 946edc47b6 Missing clkdev entries are causing regressions on the U8500 platform.
This pull request contains those missing clkdev entries which are needed
 to boot that platform.
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Merge tag 'clk-fixes-for-linus' of git://git.linaro.org/people/mturquette/linux

Pull ux500 clk fixes from Mike Turquette:
 "Missing clkdev entries are causing regressions on the U8500 platform.
  This pull request contains those missing clkdev entries which are
  needed to boot that platform."

* tag 'clk-fixes-for-linus' of git://git.linaro.org/people/mturquette/linux:
  clk: ux500: Register slimbus clock lookups for u8500
  clk: ux500: Update rtc clock lookup for u8500
  clk: ux500: Register msp clock lookups for u8500
  clk: ux500: Register ssp clock lookups for u8500
  clk: ux500: Register i2c clock lookups for u8500
2012-11-12 17:05:53 -08:00
Linus Torvalds 70c80dfd57 Merge branch 'rc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild
Pull menuconfig portability fix from Michal Marek:
 "Here is a fix for v3.7 that makes menuconfig compile again on systems
  whose C library is lacking CIRCLEQ_* macros.  I thought I sent it
  earlier, but apparently I did not."

* 'rc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
  menuconfig: Replace CIRCLEQ by list_head-style lists.
2012-11-12 17:04:57 -08:00
Linus Torvalds 9dce781768 Merge branch 'fixes-for-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds
Pull LED fix from Bryan Wu.

* 'fixes-for-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds:
  ledtrig-cpu: kill useless mutex to fix sleep in atomic context
2012-11-12 17:03:28 -08:00
Linus Torvalds b0db954c04 Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull futex fix from Thomas Gleixner:
 "Single fix for a long standing futex race when taking over a futex
  whose owner died.  You can end up with two owners, which violates
  quite some rules."

* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  futex: Handle futex_pi OWNER_DIED take over correctly
2012-11-12 17:02:21 -08:00
Petr Matousek 6d1068b3a9 KVM: x86: invalid opcode oops on SET_SREGS with OSXSAVE bit set (CVE-2012-4461)
On hosts without the XSAVE support unprivileged local user can trigger
oops similar to the one below by setting X86_CR4_OSXSAVE bit in guest
cr4 register using KVM_SET_SREGS ioctl and later issuing KVM_RUN
ioctl.

invalid opcode: 0000 [#2] SMP
Modules linked in: tun ip6table_filter ip6_tables ebtable_nat ebtables
...
Pid: 24935, comm: zoog_kvm_monito Tainted: G      D      3.2.0-3-686-pae
EIP: 0060:[<f8b9550c>] EFLAGS: 00210246 CPU: 0
EIP is at kvm_arch_vcpu_ioctl_run+0x92a/0xd13 [kvm]
EAX: 00000001 EBX: 000f387e ECX: 00000000 EDX: 00000000
ESI: 00000000 EDI: 00000000 EBP: ef5a0060 ESP: d7c63e70
 DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
Process zoog_kvm_monito (pid: 24935, ti=d7c62000 task=ed84a0c0
task.ti=d7c62000)
Stack:
 00000001 f70a1200 f8b940a9 ef5a0060 00000000 00200202 f8769009 00000000
 ef5a0060 000f387e eda5c020 8722f9c8 00015bae 00000000 ed84a0c0 ed84a0c0
 c12bf02d 0000ae80 ef7f8740 fffffffb f359b740 ef5a0060 f8b85dc1 0000ae80
Call Trace:
 [<f8b940a9>] ? kvm_arch_vcpu_ioctl_set_sregs+0x2fe/0x308 [kvm]
...
 [<c12bfb44>] ? syscall_call+0x7/0xb
Code: 89 e8 e8 14 ee ff ff ba 00 00 04 00 89 e8 e8 98 48 ff ff 85 c0 74
1e 83 7d 48 00 75 18 8b 85 08 07 00 00 31 c9 8b 95 0c 07 00 00 <0f> 01
d1 c7 45 48 01 00 00 00 c7 45 1c 01 00 00 00 0f ae f0 89
EIP: [<f8b9550c>] kvm_arch_vcpu_ioctl_run+0x92a/0xd13 [kvm] SS:ESP
0068:d7c63e70

QEMU first retrieves the supported features via KVM_GET_SUPPORTED_CPUID
and then sets them later. So guest's X86_FEATURE_XSAVE should be masked
out on hosts without X86_FEATURE_XSAVE, making kvm_set_cr4 with
X86_CR4_OSXSAVE fail. Userspaces that allow specifying guest cpuid with
X86_FEATURE_XSAVE even on hosts that do not support it, might be
susceptible to this attack from inside the guest as well.

Allow setting X86_CR4_OSXSAVE bit only if host has XSAVE support.

Signed-off-by: Petr Matousek <pmatouse@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2012-11-12 21:16:45 -02:00
Fabio Estevam 2d4d07b97c ARM: boot: Fix usage of kecho
Since commit edc88ceb0 (ARM: be really quiet when building with 'make -s') the
following output is generated when building a kernel for ARM:

echo '  Kernel: arch/arm/boot/Image is ready'
  Kernel: arch/arm/boot/Image is ready
  Building modules, stage 2.
echo '  Kernel: arch/arm/boot/zImage is ready'
  Kernel: arch/arm/boot/zImage is ready

As per Documentation/kbuild/makefiles.txt the correct way of using kecho is
'@$(kecho)'.

Make this change so no more unwanted 'echo' messages are displayed.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-11-12 23:22:54 +01:00
Arnd Bergmann c9af5b76ef Minor OMAP PM and hwmod fixes for v3.7-rc series via
Kevin Hilman and Paul Walmsley.
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Merge tag 'omap-for-v3.7-rc4/fixes-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes

From Tony Lindgren <tony@atomide.com>:

Minor OMAP PM and hwmod fixes for v3.7-rc series via
Kevin Hilman and Paul Walmsley.

* tag 'omap-for-v3.7-rc4/fixes-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP4: PM: fix regulator name for VDD_MPU
  ARM: OMAP4: hwmod data: do not enable or reset the McPDM during kernel init
  ARM: OMAP2+: hwmod: add flag to prevent hwmod code from touching IP block during init
  ARM: OMAP: hwmod: wait for sysreset complete after enabling hwmod
  ARM: OMAP2+: clockdomain: Fix OMAP4 ISS clk domain to support only SWSUP
  ARM: OMAP2+: PM: add missing newline to VC warning message

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-11-12 22:41:39 +01:00