Commit Graph

299538 Commits

Author SHA1 Message Date
Stephen Warren 8034761c21 USB: ehci-tegra: don't call set_irq_flags(IRQF_VALID)
This call is not needed; the IRQ controller should (and does) set up
interrupts correctly. set_irq_flags() isn't exported to modules, to
this also fixes compilation of ehci-tegra.c as a module.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-18 14:17:33 -07:00
Tomoki Sekiyama 532f17b5d5 USB: yurex: Fix missing URB_NO_TRANSFER_DMA_MAP flag in urb
Current probing code is setting URB_NO_TRANSFER_DMA_MAP flag into a wrong urb
structure, and this causes BUG_ON with some USB host implementations.
This patch fixes the issue.

Signed-off-by: Tomoki Sekiyama <tomoki.sekiyama@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-18 14:13:53 -07:00
Tomoki Sekiyama 523fc5c14f USB: yurex: Remove allocation of coherent buffer for setup-packet buffer
Removes allocation of coherent buffer for the control-request setup-packet
buffer from the yurex driver. Using coherent buffers for setup-packet is
obsolete and does not work with some USB host implementations.

Signed-off-by: Tomoki Sekiyama <tomoki.sekiyama@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-18 14:13:53 -07:00
Julia Lawall f4a728d09a drivers/usb/misc/usbtest.c: add kfrees
Free the two previously allocated buffers before exiting the function in an
error case.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-18 14:13:52 -07:00
Anatolij Gustschin f941f69225 USB: ehci-fsl: Fix kernel crash on mpc5121e
Since commit 28c56ea143
(powerpc/usb: fix bug of kernel hang when initializing usb)
the kernel crashes on mpc5121e. mpc5121e doesn't have system interface
registers, accessing this register address space cause the machine check
exception and a kernel crash:
...
[    1.294596] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    1.316491] fsl-ehci fsl-ehci.0: Freescale On-Chip EHCI Host Controller
[    1.337334] fsl-ehci fsl-ehci.0: new USB bus registered, assigned bus number 1
[    1.358548] Machine check in kernel mode.
[    1.375917] Caused by (from SRR1=49030): Transfer error ack signal
[    1.395505] Oops: Machine check, sig: 7 [#1]
[    1.413113] MPC5121 ADS
[    1.428718] Modules linked in:
[    1.444841] NIP: c026efc4 LR: c0278b50 CTR: 00000000
[    1.463342] REGS: df837ba0 TRAP: 0200   Not tainted  (3.3.0-08839-gb5174fa)
[    1.484083] MSR: 00049030 <EE,ME,IR,DR>  CR: 42042022  XER: 20000000
[    1.504099] TASK = df834000[1] 'swapper' THREAD: df836000
[    1.509667] GPR00: 1c000000 df837c50 df834000 df9d74e0 00000003 00000010 00000000 00000000
[    1.531650] GPR08: 00000020 00000000 c037cdd8 e1088000 22042028 1001a69c 00000000 00000000
[    1.553762] GPR16: 1ffbce70 00000000 1fef5b28 1fef3e08 00000000 00000000 1ffcbc7c c045b264
[    1.575824] GPR24: 0000008b 00000002 c04a7dd0 e1088000 df33c960 df9d74e0 00000000 df9d7400
[    1.612295] NIP [c026efc4] ehci_fsl_setup_phy+0x110/0x124
[    1.632454] LR [c0278b50] ehci_fsl_setup+0x29c/0x304
[    1.652065] Call Trace:
[    1.668923] [df837c50] [c0278a40] ehci_fsl_setup+0x18c/0x304 (unreliable)
[    1.690332] [df837c70] [c025cba4] usb_add_hcd+0x1f0/0x66c
[    1.710377] [df837cb0] [c0277ab8] ehci_fsl_drv_probe+0x180/0x308
[    1.731322] [df837ce0] [c01fc7a8] platform_drv_probe+0x20/0x30
[    1.752202] [df837cf0] [c01fb0ac] driver_probe_device+0x8c/0x214
[    1.773491] [df837d10] [c01f956c] bus_for_each_drv+0x6c/0xa8
[    1.794279] [df837d40] [c01fafdc] device_attach+0xb4/0xd8
[    1.814574] [df837d60] [c01fa44c] bus_probe_device+0xa4/0xb4
[    1.835343] [df837d80] [c01f87a8] device_add+0x52c/0x5dc
[    1.855462] [df837dd0] [c01fcd58] platform_device_add+0x124/0x1d0
[    1.876558] [df837df0] [c036dcec] fsl_usb2_device_register+0xa0/0xd4
[    1.897512] [df837e10] [c036df28] fsl_usb2_mph_dr_of_probe+0x208/0x264
[    1.918253] [df837e90] [c01fc7a8] platform_drv_probe+0x20/0x30
[    1.938300] [df837ea0] [c01fb0ac] driver_probe_device+0x8c/0x214
[    1.958511] [df837ec0] [c01fb2f0] __driver_attach+0xbc/0xc0
[    1.978088] [df837ee0] [c01f9608] bus_for_each_dev+0x60/0x9c
[    1.997589] [df837f10] [c01fab88] driver_attach+0x24/0x34
[    2.016757] [df837f20] [c01fa744] bus_add_driver+0x1ac/0x274
[    2.036339] [df837f50] [c01fb898] driver_register+0x88/0x150
[    2.056052] [df837f70] [c01fcabc] platform_driver_register+0x68/0x78
[    2.076650] [df837f80] [c0446500] fsl_usb2_mph_dr_driver_init+0x18/0x28
[    2.097734] [df837f90] [c0003988] do_one_initcall+0x148/0x1b0
[    2.117934] [df837fc0] [c042d89c] kernel_init+0xfc/0x190
[    2.137667] [df837ff0] [c000d2c4] kernel_thread+0x4c/0x68
[    2.157240] Instruction dump:
[    2.174119] 90050004 4e800020 2f840003 419e0014 2f840004 409eff64 6400c000 4bffff5c
[    2.196000] 64001000 7c0004ac 812b0500 0c090000 <4c00012c> 61290200 7c0004ac 912b0500
[    2.218100] ---[ end trace 21659aedb84ad816 ]---
[    2.237089]
[    3.232940] Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000007
[    3.232954]
[    3.271575] Rebooting in 1 seconds..

Check pdata->have_sysif_regs flag before accessing system interface
registers.

Signed-off-by: Anatolij Gustschin <agust@denx.de>
Cc: Shengzhou Liu <Shengzhou.Liu@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-18 14:13:52 -07:00
Linus Torvalds b6a89584c3 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull security subsystem fixes from James Morris.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
  fcaps: clear the same personality flags as suid when fcaps are used
  mpi: Avoid using freed pointer in mpi_lshift_limbs()
  Smack: move label list initialization
2012-04-18 13:23:44 -07:00
Oliver Neukum 5bd7b419ef uwb: fix error handling
Fatal errors such as a device disconnect must not trigger
error handling. The error returns must be checked.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-18 13:15:51 -07:00
Oliver Neukum 9426cd0568 uwb: fix use of del_timer_sync() in interrupt
del_timer_sync() cannot be used in interrupt.
Replace it with del_timer() and a flag

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-18 13:15:51 -07:00
Lasse Collin 0db7bd8ca0 xz: Enable BCJ filters on SPARC and 32-bit x86
The BCJ filters were meant to be enabled already on these
archs, but the xz_wrap.sh script was buggy. Enabling the
filters should give smaller kernel images.

xz_wrap.sh will now use $SRCARCH instead of $ARCH to detect
the architecture. That way it doesn't need to care about the
subarchs (like i386 vs. x86_64) since the BCJ filters don't
care either.

Signed-off-by: Lasse Collin <lasse.collin@tukaani.org>
Acked-by: Jan Beulich <jbeulich@suse.com>
Acked-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-04-18 13:13:18 -07:00
Alan Stern 2fbe2bf1fd EHCI: always clear the STS_FLR status bit
This patch (as1544) fixes a problem affecting some EHCI controllers.
They can generate interrupts whenever the STS_FLR status bit is turned
on, even though that bit is masked out in the Interrupt Enable
register.

Since the driver doesn't use STS_FLR anyway, the patch changes the
interrupt routine to clear that bit whenever it is set, rather than
leaving it alone.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reported-and-tested-by: Tomoya MORINAGA <tomoya.rohm@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-18 13:06:59 -07:00
Linus Torvalds 40df43a17f 1) Notable regression fix. Forbid dynamic runtime power management by
default, due to issues with suspend/resume and hotplug.
 
    To re-enable, use sysfs.
 
 2) make ata_print_id atomic, due to ref from multiple contexts
 
 3) sata_mv warning fix
 
 4) ata_piix new PCI ID
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Merge tag 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev

Pull libara fixes from Jeff Garzik:

 - Notable regression fix.  Forbid dynamic runtime power management by
   default, due to issues with suspend/resume and hotplug.

   To re-enable, use sysfs.

 - make ata_print_id atomic, due to ref from multiple contexts

 - sata_mv warning fix

 - ata_piix new PCI ID

* tag 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
  libata: forbid port runtime pm by default, fixing regression
  libata: make ata_print_id atomic
  sata_mv: silence an uninitialized variable warning
  ata_piix: IDE-mode SATA patch for Intel DH89xxCC DeviceIDs
2012-04-18 12:58:29 -07:00
Konrad Rzeszutek Wilk a71e23d992 xen/blkback: Fix warning error.
drivers/block/xen-blkback/xenbus.c: In function 'xen_blkbk_discard':
drivers/block/xen-blkback/xenbus.c:419:4: warning: passing argument 1 of 'dev_warn' makes pointer from integer without a cast
+[enabled by default]
include/linux/device.h:894:5: note: expected 'const struct device *' but argument is of type 'long int'

It is unclear how that mistake made it in. It surely is wrong.

Acked-by: Jens Axboe <axboe@kernel.dk>
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2012-04-18 15:54:08 -04:00
Konrad Rzeszutek Wilk 681e4a5e13 Merge commit 'c104f1fa1ecf4ee0fc06e31b1f77630b2551be81' into stable/for-linus-3.4
* commit 'c104f1fa1ecf4ee0fc06e31b1f77630b2551be81': (14566 commits)
  cpufreq: OMAP: fix build errors: depends on ARCH_OMAP2PLUS
  sparc64: Eliminate obsolete __handle_softirq() function
  sparc64: Fix bootup crash on sun4v.
  kconfig: delete last traces of __enabled_ from autoconf.h
  Revert "kconfig: fix __enabled_ macros definition for invisible and un-selected symbols"
  kconfig: fix IS_ENABLED to not require all options to be defined
  irq_domain: fix type mismatch in debugfs output format
  staging: android: fix mem leaks in __persistent_ram_init()
  staging: vt6656: Don't leak memory in drivers/staging/vt6656/ioctl.c::private_ioctl()
  staging: iio: hmc5843: Fix crash in probe function.
  panic: fix stack dump print on direct call to panic()
  drivers/rtc/rtc-pl031.c: enable clock on all ST variants
  Revert "mm: vmscan: fix misused nr_reclaimed in shrink_mem_cgroup_zone()"
  hugetlb: fix race condition in hugetlb_fault()
  drivers/rtc/rtc-twl.c: use static register while reading time
  drivers/rtc/rtc-s3c.c: add placeholder for driver private data
  drivers/rtc/rtc-s3c.c: fix compilation error
  MAINTAINERS: add PCDP console maintainer
  memcg: do not open code accesses to res_counter members
  drivers/rtc/rtc-efi.c: fix section mismatch warning
  ...
2012-04-18 15:52:50 -04:00
Lin Ming 0c8d32c27f libata: forbid port runtime pm by default, fixing regression
Forbid port runtime pm by default because it has known hotplug issue.
User can allow it by, for example

echo auto > /sys/devices/pci0000:00/0000:00:1f.2/ata2/power/control

Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2012-04-18 14:33:25 -04:00
Guenter Roeck 1196573fe4 hwmon: (ads1015) Fix build warning
The following build warning is seen in some configurations.

drivers/hwmon/ads1015.c: In function 'show_in':
drivers/hwmon/ads1015.c:129: warning: 'in' may be used uninitialized in this function

Fix by separating the register read function from the code converting the result
into mV.

Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Cc: Dirk Eibach <eibach@gdsys.de>
Reviewed-by: Robert Coulson <robert.coulson@ericsson.com>
2012-04-18 11:15:50 -07:00
Andre Przywara 00250ec909 hwmon: fam15h_power: fix bogus values with current BIOSes
Newer BKDG[1] versions recommend a different initialization value for
the running average range register in the northbridge. This improves
the power reading by avoiding counter saturations resulting in bogus
values for anything below about 80% of TDP power consumption.
Updated BIOSes will have this new value set up from the beginning,
but meanwhile we correct this value ourselves.
This needs to be done on all northbridges, even on those where the
driver itself does not register at.

This fixes the driver on all current machines to provide proper
values for idle load.

[1]
http://support.amd.com/us/Processor_TechDocs/42301_15h_Mod_00h-0Fh_BKDG.pdf
Chapter 3.8: D18F5xE0 Processor TDP Running Average (p. 452)

Signed-off-by: Andre Przywara <andre.przywara@amd.com>
Acked-by: Jean Delvare <khali@linux-fr.org>
[guenter.roeck@ericsson.com: Removed unnecessary return statement]
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Cc: stable@vger.kernel.org # 3.0+
2012-04-18 11:15:40 -07:00
Thomas Gleixner 9ecf8c0d4f Revert "ACPI: Make ACPI interrupt threaded"
This reverts commit 6fe0d06282.

Paul bisected this regression.

The conversion was done blindly and is wrong, as it does not provide a
primary handler to disable the level type irq on the device level.
Neither does it set the IRQF_ONESHOT flag which handles that at the irq
line level.  This can't be done as the interrupt might be shared, though
we might extend the core to force it.

So an interrupt on this line will wake up the thread, but immediately
unmask the irq after that.  Due to the interrupt being level type the
hardware interrupt is raised over and over and prevents the irq thread
from handling it.  Fail.

request_irq() unfortunately does not refuse such a request and the patch
was obviously never tested with real interrupts.

Bisected-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-04-18 10:16:27 -07:00
David Härdeman d9b786955f [media] rc-core: set mode for winbond-cir
Setting the correct mode is required by rc-core or scancodes won't be
generated (which isn't very user-friendly).

This one-line fix should be suitable for 3.4-rc2.

Signed-off-by: David Härdeman <david@hardeman.nu>
Cc: stable@kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-04-18 11:18:48 -03:00
Alexey Khoroshilov e4459e1682 [media] drxk: Does not unlock mutex if sanity check failed in scu_command()
If sanity check fails in scu_command(), goto error leads to unlock of
an unheld mutex. The check should not fail in reality, but it nevertheless
worth fixing.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Cc: stable@kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-04-18 11:04:28 -03:00
Mauro Carvalho Chehab 3626479e48 [media] dvb_frontend: Fix a regression when switching back to DVB-S
There are some softwares (Kaffeine and likely xine) that uses a
DVBv5 call to switch to DVB-S2, but expects that a DVBv3 call to
switch back to DVB-S. Well, this is not right, as a DVBv3 call
doesn't know anything about delivery systems.

However, as, by accident, this used to work, we need to restore its
behavior, in order to avoid regressions with those softwares.

Reported on this Fedora 16 bugzilla:
	https://bugzilla.redhat.com/show_bug.cgi?id=812895

Reported-by: Dieter Roever <Dieter.Roever@gmx.de>
Cc: stable@kernel.org # for version 3.3
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-04-18 11:03:18 -03:00
Robert Lee 4659b7f1fa ARM: imx: Fix imx5 idle logic bug
The imx5_idle() check of the tzic_eanble_wake() return value uses
incorrect (inverted) logic causing all attempt to idle to fail.

Signed-off-by: Robert Lee <rob.lee@linaro.org>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2012-04-18 11:52:24 +02:00
Fabio Estevam de1de1594f ARM: imx27-dt: Fix build due to removal of irq_domain_add_simple()
commit 6b783f7c (irq_domain: Remove irq_domain_add_simple()
replaced irq_domain_add_simple with irq_domain_add_legacy()

Implement this conversion so that imx27-dt can be built again.

Reported-by: Chris Ball <cjb@laptop.org>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2012-04-18 11:52:24 +02:00
Fabio Estevam 9fd4a50a12 ARM: imx_v4_v5_defconfig: Add support for CONFIG_REGULATOR_FIXED_VOLTAGE
Add support for CONFIG_REGULATOR_FIXED_VOLTAGE.

Without this option the mx27_3ds cannot have the external Ethernet functional
due to the need of smsc regulators.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2012-04-18 11:52:23 +02:00
Chris Wilson 99d9acdd0c drm/i915: Do not set "Enable Panel Fitter" on SNB pageflips
Not only do the pageflip work without it at non-native modes (i.e. with
the panel fitter enabled), it also causes normal (non-pageflipped)
modesets to fail.

Reported-by: Adam Jackson <ajax@redhat.com>
Tested-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Wanted-by-for-fixes: Dave Airlie <airlied@gmail.com>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-04-18 10:30:47 +02:00
Randy Dunlap f2ec52d4c3 ALSA: fix core/vmaster.c kernel-doc warning
Fix kernel-doc warning in sound/core/vmaster.c:

Warning(sound/core/vmaster.c:429): No description found for parameter 'private_data'

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-04-18 07:56:15 +02:00
Eric Paris d52fc5dde1 fcaps: clear the same personality flags as suid when fcaps are used
If a process increases permissions using fcaps all of the dangerous
personality flags which are cleared for suid apps should also be cleared.
Thus programs given priviledge with fcaps will continue to have address space
randomization enabled even if the parent tried to disable it to make it
easier to attack.

Signed-off-by: Eric Paris <eparis@redhat.com>
Reviewed-by: Serge Hallyn <serge.hallyn@canonical.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>
2012-04-18 12:37:56 +10:00
Jesper Juhl 09c79b6096 mpi: Avoid using freed pointer in mpi_lshift_limbs()
At the start of the function we assign 'a->d' to 'ap'. Then we use the
RESIZE_IF_NEEDED macro on 'a' - this may free 'a->d' and replace it
with newly allocaetd storage. In that case, we'll be operating on
freed memory further down in the function when we index into 'ap[]'.
Since we don't actually need 'ap' until after the use of the
RESIZE_IF_NEEDED macro we can just delay the assignment to it until
after we've potentially resized, thus avoiding the issue.

While I was there anyway I also changed the integer variable 'n' to be
const. It might as well be since we only assign to it once and use it
as a constant, and then the compiler will tell us if we ever assign to
it in the future.

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Acked-by: Dmitry Kasatkin <dmitry.kasatkin@intel.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>
2012-04-18 12:14:28 +10:00
Casey Schaufler 86812bb0de Smack: move label list initialization
A kernel with Smack enabled will fail if tmpfs has xattr support.

Move the initialization of predefined Smack label
list entries to the LSM initialization from the
smackfs setup. This became an issue when tmpfs
acquired xattr support, but was never correct.

Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>
2012-04-18 12:02:28 +10:00
Alan Stern dc75ce9d92 EHCI: fix criterion for resuming the root hub
This patch (as1542) changes the criterion ehci-hcd uses to tell when
it needs to resume the controller's root hub.  A resume is needed when
a port status change is detected, obviously, but only if the root hub
is currently suspended.

Right now the driver tests whether the root hub is running, and that
is not the correct test.  In particular, if the controller has died
then the root hub should not be restarted.  In addition, some buggy
hardware occasionally requires the root hub to be running and
sending out SOF packets even while it is nominally supposed to be
suspended.

In the end, the test needs to be changed.  Rather than checking whether
the root hub is currently running, the driver will now check whether
the root hub is currently suspended.  This will yield the correct
behavior in all cases.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
CC: Peter Chen <B29397@freescale.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-17 15:54:58 -07:00
Bjørn Mork 749541d19e USB: sierra: avoid QMI/wwan interface on MC77xx
These devices have a number of non serial interfaces as well.  Use
the existing "Direct IP" blacklist to prevent binding to interfaces
which are handled by other drivers.

We also extend the "Direct IP" blacklist with with interfaces only
seen in "QMI" mode, assuming that these devices use the same
interface numbers for serial interfaces both in "Direct IP" and in
"QMI" mode.

Signed-off-by: Bjørn Mork <bjorn@mork.no>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-17 15:54:57 -07:00
Xi Wang 8bde9a62ee usb: usbtest: avoid integer overflow in alloc_sglist()
A large `nents' from userspace could overflow the allocation size,
leading to memory corruption.

| alloc_sglist()
| usbtest_ioctl()

Use kmalloc_array() to avoid the overflow.

Signed-off-by: Xi Wang <xi.wang@gmail.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-17 15:54:57 -07:00
Xi Wang e65cdfae71 usb: usbtest: avoid integer overflow in test_ctrl_queue()
Avoid overflowing context.count = param->sglen * param->iterations,
where both `sglen' and `iterations' are from userspace.

| test_ctrl_queue()
| usbtest_ioctl()

Keep -EOPNOTSUPP for error code.

Signed-off-by: Xi Wang <xi.wang@gmail.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-17 15:54:57 -07:00
Alan Stern 8963c487a8 USB: fix deadlock in bConfigurationValue attribute method
This patch (as154) fixes a self-deadlock that occurs when userspace
writes to the bConfigurationValue sysfs attribute for a hub with
children.  The task tries to lock the bandwidth_mutex at a time when
it already owns the lock:

	The attribute's method calls usb_set_configuration(),
	which calls usb_disable_device() with the bandwidth_mutex
	held.

	usb_disable_device() unregisters the existing interfaces,
	which causes the hub driver to be unbound.

	The hub_disconnect() routine calls hub_quiesce(), which
	calls usb_disconnect() for each of the hub's children.

	usb_disconnect() attempts to acquire the bandwidth_mutex
	around a call to usb_disable_device().

The solution is to make usb_disable_device() acquire the mutex for
itself instead of requiring the caller to hold it.  Then the mutex can
cover only the bandwidth deallocation operation and not the region
where the interfaces are unregistered.

This has the potential to change system behavior slightly when a
config change races with another config or altsetting change.  Some of
the bandwidth released from the old config might get claimed by the
other config or altsetting, make it impossible to restore the old
config in case of a failure.  But since we don't try to recover from
config-change failures anyway, this doesn't matter.

[This should be marked for stable kernels that contain the commit
fccf4e8620 "USB: Free bandwidth when
usb_disable_device is called."
That commit was marked for stable kernels as old as 2.6.32.]

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-17 15:54:57 -07:00
Paul Walmsley 6aaec67da1 ARM: OMAP1: DMTIMER: fix broken timer clock source selection
DMTIMER source selection on OMAP1 is broken.  omap1_dm_timer_set_src()
tries to use __raw_{read,write}l() to read from and write to physical
addresses, but those functions take virtual addresses.

sparse caught this:

arch/arm/mach-omap1/timer.c:50:13: warning: incorrect type in argument 1 (different base types)
arch/arm/mach-omap1/timer.c:50:13:    expected void const volatile [noderef] <asn:2>*<noident>
arch/arm/mach-omap1/timer.c:50:13:    got unsigned int
arch/arm/mach-omap1/timer.c:52:9: warning: incorrect type in argument 1 (different base types)
arch/arm/mach-omap1/timer.c:52:9:    expected void const volatile [noderef] <asn:2>*<noident>
arch/arm/mach-omap1/timer.c:52:9:    got unsigned int

Fix by using omap_{read,writel}(), just like the other users of the
MOD_CONF_CTRL_1 register in the OMAP1 codebase.  Of course, in the long term,
removing omap_{read,write}l() is the appropriate thing to do; but
this will take some work to do this cleanly.

Looks like this was caused by 97933d6 (ARM: OMAP1: dmtimer: conversion
to platform devices) that dangerously moved code and changed it in
the same patch.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Tarun Kanti DebBarma <tarun.kanti@ti.com>
Cc: stable@vger.kernel.org
[tony@atomide.com: updated comments to include the breaking commit]
Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-04-17 15:30:16 -07:00
Linus Torvalds 592fe89806 Ext4 regression fixes for 3.4
This fixes a scalability problem reported by Andi Kleen and Tim Chen;
 they were quite secretive about the precise nature of their workload,
 but they later admitted that it only showed up when they were using a
 large sparse file, so the amount of data I/O that was needed was close
 to zero.  I'm not sure how realistic this is and it's only a
 regression if you consider changes made since 2.6.39 to be a
 "regression" vis-a-vis the policy regarding post-merge window bug
 fixes, but Linus agreed it was worth fixing, so I'm including it in
 this pull request.
 
 This also fixes the journalled quota mount options, which I
 accidentally broke while I was cleaning up the mount option handling.
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Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

Pull ext4 regression fixes from Ted Ts'o:
 "This fixes a scalability problem reported by Andi Kleen and Tim Chen;
  they were quite secretive about the precise nature of their workload,
  but they later admitted that it only showed up when they were using a
  large sparse file, so the amount of data I/O that was needed was close
  to zero.

  I'm not sure how realistic this is and it's only a regression if you
  consider changes made since 2.6.39 to be a "regression" vis-a-vis the
  policy regarding post-merge window bug fixes, but Linus agreed it was
  worth fixing, so I'm including it in this pull request.

  This also fixes the journalled quota mount options, which I
  accidentally broke while I was cleaning up the mount option handling."

* tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
  ext4: fix handling of journalled quota options
  ext4: address scalability issue by removing extent cache statistics
2012-04-17 13:30:34 -07:00
Linus Torvalds d44c6d4fa9 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs fixes from Al Viro:
 "A bunch of endianness fixes and a couple of nfsd error value fixes.

  Speaking of endianness stuff, I'm rather tempted to slap

	ccflags-y += -D__CHECK_ENDIAN__

  in fs/Makefile, if not making it default for the entire tree; nfsd
  regressions I've caught make one hell of a pile and we'd obviously
  benefit from having that kind of stuff caught earlier..."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  lockd: fix the endianness bug
  ocfs2: ->e_leaf_clusters endianness breakage
  ocfs2: ->rl_count endianness breakage
  ocfs: ->rl_used breakage on big-endian
  ocfs2: ->l_next_free_req breakage on big-endian
  btrfs: btrfs_root_readonly() broken on big-endian
  ext4: fix endianness breakage in ext4_split_extent_at()
  nfsd: fix compose_entry_fh() failure exits
  nfsd: fix error value on allocation failure in nfsd4_decode_test_stateid()
  nfsd: fix endianness breakage in TEST_STATEID handling
  nfsd: fix error values returned by nfsd4_lockt() when nfsd_open() fails
  nfsd: fix b0rken error value for setattr on read-only mount
2012-04-17 13:21:50 -07:00
Santosh Shilimkar 5ae256dcd9 ARM: OMAP: serial: Fix the ocp smart idlemode handling bug
The current serial UART code, while fidling with ocp idlemode bits,
forget about the smart idle wakeup bit even if it is supported by
UART IP block. This will lead to missing the module wakeup on OMAP's
where the smart idle wakeup is supported.

This was the root cause of the console sluggishness issue, I have been
observing on OMAP4 devices and also can be potential reason for some
other UART wakeup issues.

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Acked-by: Kevin Hilman <khilman@ti.com>
Acked-by: Govindraj.R <govindraj.raja@ti.com>
Reviewed-by: Paul Walmsley <paul@pwsan.com>
Cc: stable@vger.kernel.org
Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-04-17 12:23:45 -07:00
Govindraj.R bce492c04b ARM: OMAP2+: UART: Fix incorrect population of default uart pads
Commit (7496ba3  ARM: OMAP2+: UART: Add default mux for all uarts)
wrongly added muxing of default pads for all uarts. This causes
breakage on multiple boards using uart pins for alternate functions.

For example, on zoom3 random oopses can be seen with nfsroot as
the smsc911x ethernet FIFO timings on GPMC bus are controlled
by gpmc_wait2 and gpmc_wait3 pins. This means we can't mux these
pads to uart4 functionality as commit 7496ba3 was doing.

Not all boards tend to use all uarts and most of unused uart pins
are muxed for other purpose. This commit breaks the modules which
where trying to use unused uart pins on their boards.

So remove the default pad muxing. Note that this is not a complete
fix, as we now rely on bootloader set muxing for the uart wake-up
events. Further patching is needed to enable wake-up events for
uarts that are already muxed to uart mode.

Cc: Felipe Balbi <balbi@ti.com>
Cc: Kevin Hilman <khilman@ti.com>
Acked-by: Russ Dill <russ.dill@gmail.com>
Reported-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Govindraj.R <govindraj.raja@ti.com>
[tony@atomide.com: updated comments to describe oops on zoom3]
Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-04-17 10:35:47 -07:00
Stefano Stabellini b960d6c43a xen/p2m: m2p_find_override: use list_for_each_entry_safe
Use list_for_each_entry_safe and remove the spin_lock acquisition in
m2p_find_override.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2012-04-17 13:27:28 -04:00
Stefano Stabellini e8e937be97 xen/gntdev: do not set VM_PFNMAP
Since we are using the m2p_override we do have struct pages
corresponding to the user vma mmap'ed by gntdev.

Removing the VM_PFNMAP flag makes get_user_pages work on that vma.
An example test case would be using a Xen userspace block backend
(QDISK) on a file on NFS using O_DIRECT.

CC: stable@kernel.org
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2012-04-17 13:27:17 -04:00
Grazvydas Ignotas 63878acfaf ARM: OMAP: sram: fix BUG in dpll code for !PM case
_omap3_sram_configure_core_dpll is called when SDRC is reprogrammed,
which is done regardless of CONFIG_PM setting, so we always need it's
setup code too. Without this, we hit a BUG() on OMAP3 when kernel is
built without CONFIG_PM:

Reprogramming SDRC clock to 332000000 Hz
------------[ cut here ]------------
kernel BUG at arch/arm/plat-omap/sram.c:342!
Internal error: Oops - BUG: 0 [#1] ARM
...
[<c001c694>] (omap3_configure_core_dpll+0x68/0x6c) from [<c001b2dc>] (omap3_core_dpll_m2_set_rate+0x1)
[<c001b2dc>] (omap3_core_dpll_m2_set_rate+0x138/0x1b0) from [<c001a478>] (omap2_clk_set_rate+0x14/0x2)
[<c001a478>] (omap2_clk_set_rate+0x14/0x20) from [<c001c9dc>] (clk_set_rate+0x54/0x74)
[<c001c9dc>] (clk_set_rate+0x54/0x74) from [<c022b9c8>] (omap_sdrc_init+0x70/0x90)
[<c022b9c8>] (omap_sdrc_init+0x70/0x90) from [<c022f178>] (omap3pandora_init+0x11c/0x164)
[<c022f178>] (omap3pandora_init+0x11c/0x164) from [<c022849c>] (customize_machine+0x20/0x28)
[<c022849c>] (customize_machine+0x20/0x28) from [<c0225810>] (do_one_initcall+0xa0/0x16c)
[<c0225810>] (do_one_initcall+0xa0/0x16c) from [<c02259e0>] (kernel_init+0x104/0x1ac)
[<c02259e0>] (kernel_init+0x104/0x1ac) from [<c0009cec>] (kernel_thread_exit+0x0/0x8)

Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-04-17 10:21:58 -07:00
Linus Torvalds bc0cf58ec7 Merge git://git.samba.org/sfrench/cifs-2.6
Pull CIFS fixes from Steve French.

* git://git.samba.org/sfrench/cifs-2.6:
  Fix number parsing in cifs_parse_mount_options
  Cleanup handling of NULL value passed for a mount option
2012-04-17 09:19:29 -07:00
Nicolas Ferre f898fed0c2 dmaengine: Kconfig: fix Atmel at_hdmac entry
Remove SoC dependency and make it generic for every Atmel ARM AT91. That will
allow to select this driver for newer chips. Keep dependency on AT91 because of
the use of an header file located in include/mach directory.
Modify the comment to reflect this.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Vinod Koul <vinod.koul@linux.intel.com>
2012-04-17 16:29:41 +02:00
Nicolas Ferre 70756027b0 USB: gadget/at91_udc: add gpio_to_irq() function to vbus interrupt
Now that we are using irqdomains, we need to convert GPIO pins to Linux
IRQ numbers using the gpio_to_irq() function.
This call is added to request/free_irq calls.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Cc: linux-usb@vger.kernel.org
2012-04-17 16:29:41 +02:00
Nicolas Ferre b548a27b2e USB: ohci-at91: change annotations for probe/remove functions
Add __devinit and __devexit on *_probe() and *_remove() functions
with proper modification of struct platform_driver.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: linux-usb@vger.kernel.org
2012-04-17 16:29:32 +02:00
Nicolas Ferre 5509fea59b leds-atmel-pwm.c: Make pwmled_probe() __devinit
Commit 892a884 (leds: convert led platform drivers to module_platform_driver)
is omitting the section mismatch error: so change annotation of the probe
function to __devinit instead of __init.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: Richard Purdie <richard.purdie@linuxfoundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
2012-04-17 16:29:31 +02:00
Greg Ungerer 938ed25008 m68knommu: make sure 2nd FEC eth interface pins are enabled on 5275 ColdFire
The CONFIG_FEC2 define was removed from the kernel many versions ago.
But it is still being used to set the multi-function pins when compiling
for a ColdFire 527[45] SoC that has 2 ethernet interfaces. Remove the
last remaining uses of this define, and so fix the setting of the pins
for the 2nd ethernet interface.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2012-04-17 17:06:34 +10:00
Greg Ungerer bfdd769ac5 m68knommu: fix id number for second eth device on 5275 ColdFire
The second ColdFire FEC ethernet device should have an id number of 1,
not 0. Otherwise it clashes with the first FEC ethernet device.

On booting a kernel on a 5275 based board you will get messages out of
the kernel like this:

    <4>------------[ cut here ]------------
    <4>WARNING: at fs/sysfs/dir.c:508 0x0a8b50()
    <4>sysfs: cannot create duplicate filename 'fec.0'

And likely you won't be able to completely boot up after this at all.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2012-04-17 16:58:35 +10:00
Julia Lawall 6b5e7d9ef7 xen/grant-table: add error-handling code on failure of gnttab_resume
Jump to the label ini_nomem as done on the failure of the page allocations
above.

The code at ini_nomem is modified to accommodate different return values.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2012-04-17 00:29:32 -04:00
Linus Torvalds 4643b05662 Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Ingo Molnar.

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86: Handle failures of parsing immediate operands in the instruction decoder
  perf archive: Correct cutting of symbolic link
  perf tools: Ignore auto-generated bison/flex files
  perf tools: Fix parsers' rules to dependencies
  perf tools: fix NO_GTK2 Makefile config error
  perf session: Skip event correctly for unknown id/machine
2012-04-16 18:35:21 -07:00