147755 Commits

Author SHA1 Message Date
Dan Williams
6ef1b512f4 [SCSI] libsas: fix taskfile corruption in sas_ata_qc_fill_rtf
fill_result_tf() grabs the taskfile flags from the originating qc which
sas_ata_qc_fill_rtf() promptly overwrites.  The presence of an
ata_taskfile in the sata_device makes it tempting to just copy the full
contents in sas_ata_qc_fill_rtf().  However, libata really only wants
the fis contents and expects the other portions of the taskfile to not
be touched by ->qc_fill_rtf.  To that end store a fis buffer in the
sata_device and use ata_tf_from_fis() like every other ->qc_fill_rtf()
implementation.

Cc: <stable@vger.kernel.org>
Reported-by: Praveen Murali <pmurali@logicube.com>
Tested-by: Praveen Murali <pmurali@logicube.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-07-08 09:49:14 +01:00
Shinya Kuribayashi
476a7eeb60 hwspinlock/core: use global ID to register hwspinlocks on multiple devices
Commit 300bab9770 (hwspinlock/core: register a bank of hwspinlocks in a
single API call, 2011-09-06) introduced 'hwspin_lock_register_single()'
to register numerous (a bank of) hwspinlock instances in a single API,
'hwspin_lock_register()'.

At which time, 'hwspin_lock_register()' accidentally passes 'local IDs'
to 'hwspin_lock_register_single()', despite that ..._single() requires
'global IDs' to register hwspinlocks.

We have to convert into global IDs by supplying the missing 'base_id'.

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi.px@renesas.com>
[ohad: fix error path of hwspin_lock_register, too]
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
2012-07-07 22:35:30 +03:00
Sylwester Nawrocki
4e39da0102 [media] s5p-fimc: Add missing FIMC-LITE file operations locking
commit 5126f2590bee412e3053de851cb07f531e4be36a
"v4l2-dev: add flag to have the core lock all file operations"
introduced an additional bit flag (V4L2_FL_LOCK_ALL_FOPS) that
should be set by drivers that use the v4l2 core lock for all file
operations. Since this driver has been merged at the same time as
the core changes it doesn't set this flags and thus its all file
operations except IOCTL are not properly serialized. Fix this by
adding file ops locking in the driver.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-07-07 00:12:39 -03:00
Laurent Pinchart
5aedc10940 [media] omap3isp: preview: Fix contrast and brightness handling
Commit bac387efbb88cf0e8df6f46a38387897cea464ee ("omap3isp: preview:
Simplify configuration parameters access") added three fields to the
preview_update structure, but failed to properly update the related
initializers. Fix this.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-07-06 19:36:39 -03:00
Laurent Pinchart
7103180b43 [media] omap3isp: preview: Fix output size computation depending on input format
The preview engine crops 4 columns and 4 lines when CFA is enabled.
Commit b2da46e52fe7871cba36e1a435844502c0eccf39 ("omap3isp: preview: Add
support for greyscale input") inverted the condition by mistake, fix
this.

Reported-by: Florian Neuhaus <florian.neuhaus@reberinformatik.ch>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Florian Neuhaus <florian.neuhaus@reberinformatik.ch>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-07-06 19:36:39 -03:00
Anton Blanchard
8299d62843 [media] winbond-cir: Initialise timeout, driver_type and allowed_protos
We need to set a timeout so we can go idle on no activity.

Signed-off-by: Anton Blanchard <anton@samba.org>
Acked-by: David Härdeman <david@hardeman.nu>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-07-06 19:36:38 -03:00
Anton Blanchard
57f4422f7b [media] winbond-cir: Fix txandrx module info
We aren't getting any module info for the txandx option because
of a typo:

parm:           txandrx:bool

Signed-off-by: Anton Blanchard <anton@samba.org>
Acked-by: David Härdeman <david@hardeman.nu>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-07-06 19:36:37 -03:00
Anton Blanchard
c6cff16926 [media] cx23885: Silence unknown command warnings
I am seeing a constant stream of warnings on my cx23885 based card:
	cx23885_tuner_callback(): Unknown command 0x2.

Add a check in cx23885_tuner_callback to silence it.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-07-06 19:36:37 -03:00
Devin Heitmueller
0ac60acb54 [media] cx23885: add support for HVR-1255 analog (cx23888 variant)
Get the HVR-1255 analog support working for all supported inputs.  This
includes introduction of a new board profile for an OEM variant which
doesn't have all the same inputs as the retail version of the board.

Validated with the following boards:

HVR-1255 (0070:2259)

Thanks to Steven Toth and Hauppauge for	loaning	me various boards to
regression test	with.

Thanks-to: Steven Toth <stoth@kernellabs.com>
Signed-off-by: Devin Heitmueler <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-07-06 19:36:35 -03:00
Devin Heitmueller
d214ddc868 [media] cx23885: make analog support work for HVR_1250 (cx23885 variant)
The analog support in the cx23885 driver was completely broken for the
HVR-1250.  Add the necessary code.

Note that this only implements analog for the composite and s-video
inputs. The tuner input continues to be non-functional due to a lack of
analog support in the mt2131 driver.

Validated with the following boards:

HVR-1250 (0070:7911)

Thanks to Steven Toth and Hauppauge for	loaning	me various boards to
regression test	with.

Thanks-to: Steven Toth <stoth@kernellabs.com>
Signed-off-by: Devin Heitmueler <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-07-06 19:36:34 -03:00
Devin Heitmueller
b5c5c17bab [media] cx25840: fix vsrc/hsrc usage on cx23888 designs
The location of the vsrc/hsrc registers moved in the cx23888, causing
the s_mbus call to fail prematurely indicating that "720x480 is not a
valid size". The function bailed out before many pertinent registers
were set related to the scaler (causing unexpected results in video
rendering when doing raw video capture).

Use the correct registers for the cx23888.

Validated with the following boards:

HVR-1800 retail (0070:7801)
HVR-1800 OEM (0070:7809)
HVR-1850 retail (0070:8541)

Thanks to Steven Toth and Hauppauge for	loaning	me various boards to
regression test with.

Reported-by: Jonathan <sitten74490@mypacks.net>
Thanks-to: Steven Toth <stoth@kernellabs.com>
Signed-off-by: Devin Heitmueler <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-07-06 19:36:32 -03:00
Devin Heitmueller
d90133ec58 [media] cx25840: fix regression in HVR-1800 analog audio
The refactoring of the cx25840 driver to support the cx23888 caused breakage
with the existing support for cx23885/cx23887 analog audio support.  Tweak
the code so that it only uses the code if it really is a cx23888 instead of
applying it to all cx2388x based devices.

Validated with the following boards:

HVR-1800 retail (0070:7801)
HVR-1800 OEM (0070:7809)
HVR_1850 retail	(0070:8541)

Thanks to Steven Toth and Hauppauge for	loaning	me various boards to
regression test with.

Reported-by: Jonathan <sitten74490@mypacks.net>
Thanks-to: Steven Toth <stoth@kernellabs.com>
Signed-off-by: Devin Heitmueler <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-07-06 19:36:32 -03:00
Devin Heitmueller
e6d0db1d47 [media] cx25840: fix regression in analog support hue/saturation controls
Fix regression in HVR-1800 analog support hue/saturation controls.

The changes made for the cx23888 caused regressions in the analog
support for cx23885/cx23887 based boards (partly due to changes in the
locations of the hue/saturation controls).  As a result the wrong
registers were being overwritten.

Add code to use the correct registers if it's a cx23888

Validated with the following boards:

HVR-1800 retail (0070:7801)
HVR-1800 OEM (0070:7809)
HVR-1850 retail (0070:8541)

Thanks to Steven Toth and Hauppauge for	loaning	me various boards to
regression test	 with.

Reported-by: Jonathan <sitten74490@mypacks.net>
Thanks-to: Steven Toth <stoth@kernellabs.com>
Signed-off-by: Devin Heitmueler <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-07-06 19:36:31 -03:00
Devin Heitmueller
ba50e7e16b [media] cx25840: fix regression in HVR-1800 analog support
The refactoring of the cx25840 driver to support the cx23888 caused breakage
with the existing support for cx23885/cx23887 analog support.  Rework the
routines such that the new code is only used for the 888.

Validated with the following boards:

HVR-1800 retail (0070:7801)
HVR-1800 OEM (0070:7809)
HVR_1850 retail (0070:8541)

Thanks to Steven Toth and Hauppauge for loaning me various boards to
regression test with.

Reported-by: Jonathan <sitten74490@mypacks.net>
Thanks-to: Steven Toth <stoth@kernellabs.com>
Signed-off-by: Devin Heitmueler <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-07-06 19:36:30 -03:00
Kamil Debski
a65c3262a7 [media] s5p-mfc: Fixed setup of custom controls in decoder and encoder
Fixed bugs in functions that initialize custom controls.

Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-07-06 19:36:29 -03:00
David Dillow
a7deca6fa7 [media] cx231xx: don't DMA to random addresses
Commit 7a6f6c29d264cdd2fe0eb3d923217eed5f0ad134 (cx231xx: use
URB_NO_TRANSFER_DMA_MAP) was intended to avoid mapping the DMA buffer
for URB twice. This works for the URBs allocated with usb_alloc_urb(),
as those are allocated from cohernent DMA pools, but the flag was also
added for the VBI and audio URBs, which have a manually allocated area.
This leaves the random trash in the structure after allocation as the
DMA address, corrupting memory and preventing VBI and audio from
working. Letting the USB core map the buffers solves the problem.

Cc: stable@kernel.org
Signed-off-by: David Dillow <dave@thedillows.org>
Cc: Sri Deevi <srinivasa.deevi@conexant.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-07-06 19:36:28 -03:00
Mauro Carvalho Chehab
4dab0e5fe8 [media] em28xx: fix em28xx-rc load
The logic that checks if a device has remote control is wrong.
Due to that, the em28xx RC module is not loaded by default.

Fix the logic, in order to make it work properly.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-07-06 19:36:27 -03:00
Santosh Nayak
82163edcdf [media] dvb-core: Release semaphore on error path dvb_register_device()
There is a missing "up_write()" here. Semaphore should be released
before returning error value.

Cc: stable@kernel.org
Signed-off-by: Santosh Nayak <santoshprasadnayak@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-07-06 19:36:27 -03:00
Linus Torvalds
c8912f2be3 Merge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
Pull target fixes from Nicholas Bellinger:
 "Two minor target fixes.  There is really nothing exciting and/or
  controversial this time around.

  There's one fix from MDR for a RCU debug warning message within tcm_fc
  code (CC'ed to stable), and a small AC fix for qla_target.c based upon
  a recent Coverity static report.

  Also, there is one other outstanding virtio-scsi LUN scanning bugfix
  that has been uncovered with the in-flight tcm_vhost driver over the
  last days, and that needs to make it into 3.5 final too.  This patch
  has been posted to linux-scsi again here:

    http://marc.info/?l=linux-scsi&m=134160609212542&w=2

  and I've asked James to include it in his next PULL request."

* git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
  qla2xxx: print the right array elements in qlt_async_event
  tcm_fc: Resolve suspicious RCU usage warnings
2012-07-06 13:59:50 -07:00
Alan Cox
4f1d0f1971 qla2xxx: print the right array elements in qlt_async_event
Based upon Alan's patch from Coverity scan id 793583, these debug
messages in qlt_async_event() should be starting from byte 0, which is
always the Asynchronous Event Status Code from the parent switch statement.

Also, rename reason_code -> login_code following the language used in
2500 FW spec for Port Database Changed (0x8014) -> Port Database Changed
Event Mailbox Register for mailbox[2].

Signed-off-by: Alan Cox <alan@linux.intel.com>
Cc: Chad Dupuis <chad.dupuis@qlogic.com>
Cc: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2012-07-06 13:09:23 -07:00
Mark Rustad
863555be0c tcm_fc: Resolve suspicious RCU usage warnings
Use rcu_dereference_protected to tell rcu that the ft_lport_lock
is held during ft_lport_create. This resolved "suspicious RCU usage"
warnings when debugging options are turned on.

Signed-off-by: Mark Rustad <mark.d.rustad@intel.com>
Tested-by: Ross Brattain <ross.b.brattain@intel.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2012-07-06 12:52:09 -07:00
Lee Jones
84774e6157 of: address: Don't fail a lookup just because a node has no reg property
Sometimes it doesn't make any sense for a node to have an address.
In this case device lookup will always be unsuccessful because we
currently assume every node will have a reg property. This patch
changes the semantics so that the resource address and the lookup
address will only be compared if one exists.

Things like AUXDATA() rely on of_dev_lookup to return the lookup
entry of a particular device in order to do things like apply
platform_data to a device. However, this is currently broken for
nodes which do not have a reg property, meaning that platform_data
can not be passed in those cases.

Acked-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2012-07-06 21:42:10 +02:00
Linus Torvalds
af9b9a53fa Two MTD fixes for 3.5:
- Fix a logic error in OLPC CAFÉ NAND ready() function.
 - Fix regression due to bitflip handling changes.
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Merge tag 'for-linus-20120706' of git://git.infradead.org/linux-mtd

Pull two MTD fixes from David Woodhouse:
 - Fix a logic error in OLPC CAFÉ NAND ready() function.
 - Fix regression due to bitflip handling changes.

* tag 'for-linus-20120706' of git://git.infradead.org/linux-mtd:
  mtd: cafe_nand: fix an & vs | mistake
  mtd: nand: initialize bitflip_threshold prior to BBT scanning
2012-07-06 10:34:48 -07:00
Linus Torvalds
1b74a8684e Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input layer fixes from Dmitry Torokhov:
 "Two fixes for regressions in Wacom driver and fixes for drivers using
  threaded IRQ framework without specifying IRQF_ONESHOT."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: request threaded-only IRQs with IRQF_ONESHOT
  Input: wacom - don't retrieve touch_max when it is predefined
  Input: wacom - fix retrieving touch_max bug
  Input: fix input.h kernel-doc warning
2012-07-06 09:50:39 -07:00
Herton Ronaldo Krzesinski
596fd46268 mtd: nandsim: don't open code a do_div helper
We don't need to open code the divide function, just use div_u64 that
already exists and do the same job. While this is a straightforward
clean up, there is more to that, the real motivation for this.

While building on a cross compiling environment in armel, using gcc
4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5), I was getting the following build
error:

ERROR: "__aeabi_uldivmod" [drivers/mtd/nand/nandsim.ko] undefined!

After investigating with objdump and hand built assembly version
generated with the compiler, I narrowed __aeabi_uldivmod as being
generated from the divide function. When nandsim.c is built with
-fno-inline-functions-called-once, that happens when
CONFIG_DEBUG_SECTION_MISMATCH is enabled, the do_div optimization in
arch/arm/include/asm/div64.h doesn't work as expected with the open
coded divide function: even if the do_div we are using doesn't have a
constant divisor, the compiler still includes the else parts of the
optimized do_div macro, and translates the divisions there to use
__aeabi_uldivmod, instead of only calling __do_div_asm -> __do_div64 and
optimizing/removing everything else out.

So to reproduce, gcc 4.6 plus CONFIG_DEBUG_SECTION_MISMATCH=y and
CONFIG_MTD_NAND_NANDSIM=m should do it, building on armel.

After this change, the compiler does the intended thing even with
-fno-inline-functions-called-once, and optimizes out as expected the
constant handling in the optimized do_div on arm. As this also avoids a
build issue, I'm marking for Stable, as I think is applicable for this
case.

Signed-off-by: Herton Ronaldo Krzesinski <herton.krzesinski@canonical.com>
Cc: stable@vger.kernel.org
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-07-06 16:59:33 +01:00
Sascha Hauer
6023813a2d mtd: gpmi-nand: fix read page when reading to vmalloced area
The gpmi-nand driver uses virt_addr_valid() to check whether a buffer
is suitable for dma. If it's not, a driver allocated buffer is used
instead. Then after a page read the driver allocated buffer must be
copied to the user supplied buffer. This does not happen since commit
7725cc85932bd02dd12c23108e0ef748c551ccba.

This patch fixes the issue. The bug is encountered with UBI which uses a
vmalloced buffer for the volume table.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Tested-by: snijsure@grid-net.com
Acked-by: Huang Shijie <b32955@freescale.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-07-06 15:06:23 +01:00
Sascha Hauer
096bcc231f mtd: mxc_nand: use 32bit copy functions
The following commit changes the function used to copy from/to
the hardware buffer to memcpy_[from|to]io. This does not work
since the hardware cannot handle the byte accesses used by these
functions. Instead of reverting this patch introduce 32bit
correspondents of these functions.

| commit 5775ba36ea9c760c2d7e697dac04f2f7fc95aa62
| Author: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
| Date:   Tue Apr 24 10:05:22 2012 +0200
|
|    mtd: mxc_nand: fix several sparse warnings about incorrect address space
|
|     Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
|     Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-07-06 15:06:18 +01:00
Dan Carpenter
48f8b64129 mtd: cafe_nand: fix an & vs | mistake
The intent here was clearly to set result to true if the 0x40000000 flag
was set.  But instead there was a | vs & typo and we always set result
to true.

Artem: check the spec at
wiki.laptop.org/images/5/5c/88ALP01_Datasheet_July_2007.pdf
and this fix looks correct.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: stable@vger.kernel.org
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-07-06 14:27:13 +01:00
Bjørn Mork
b086b6b10d USB: cdc-wdm: fix lockup on error in wdm_read
Clear the WDM_READ flag on empty reads to avoid running
forever in an infinite tight loop, causing lockups:

Jul  1 21:58:11 nemi kernel: [ 3658.898647] qmi_wwan 2-1:1.2: Unexpected error -71
Jul  1 21:58:36 nemi kernel: [ 3684.072021] BUG: soft lockup - CPU#0 stuck for 23s! [qmi.pl:12235]
Jul  1 21:58:36 nemi kernel: [ 3684.072212] CPU 0
Jul  1 21:58:36 nemi kernel: [ 3684.072355]
Jul  1 21:58:36 nemi kernel: [ 3684.072367] Pid: 12235, comm: qmi.pl Tainted: P           O 3.5.0-rc2+ #13 LENOVO 2776LEG/2776LEG
Jul  1 21:58:36 nemi kernel: [ 3684.072383] RIP: 0010:[<ffffffffa0635008>]  [<ffffffffa0635008>] spin_unlock_irq+0x8/0xc [cdc_wdm]
Jul  1 21:58:36 nemi kernel: [ 3684.072388] RSP: 0018:ffff88022dca1e70  EFLAGS: 00000282
Jul  1 21:58:36 nemi kernel: [ 3684.072393] RAX: ffff88022fc3f650 RBX: ffffffff811c56f7 RCX: 00000001000ce8c1
Jul  1 21:58:36 nemi kernel: [ 3684.072398] RDX: 0000000000000010 RSI: 000000000267d810 RDI: ffff88022fc3f650
Jul  1 21:58:36 nemi kernel: [ 3684.072403] RBP: ffff88022dca1eb0 R08: ffffffffa063578e R09: 0000000000000000
Jul  1 21:58:36 nemi kernel: [ 3684.072407] R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000002
Jul  1 21:58:36 nemi kernel: [ 3684.072412] R13: 0000000000000246 R14: ffffffff00000002 R15: ffff8802281d8c88
Jul  1 21:58:36 nemi kernel: [ 3684.072418] FS:  00007f666a260700(0000) GS:ffff88023bc00000(0000) knlGS:0000000000000000
Jul  1 21:58:36 nemi kernel: [ 3684.072423] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Jul  1 21:58:36 nemi kernel: [ 3684.072428] CR2: 000000000270d9d8 CR3: 000000022e865000 CR4: 00000000000007f0
Jul  1 21:58:36 nemi kernel: [ 3684.072433] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
Jul  1 21:58:36 nemi kernel: [ 3684.072438] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Jul  1 21:58:36 nemi kernel: [ 3684.072444] Process qmi.pl (pid: 12235, threadinfo ffff88022dca0000, task ffff88022ff76380)
Jul  1 21:58:36 nemi kernel: [ 3684.072448] Stack:
Jul  1 21:58:36 nemi kernel: [ 3684.072458]  ffffffffa063592e 0000000100020000 ffff88022fc3f650 ffff88022fc3f6a8
Jul  1 21:58:36 nemi kernel: [ 3684.072466]  0000000000000200 0000000100000000 000000000267d810 0000000000000000
Jul  1 21:58:36 nemi kernel: [ 3684.072475]  0000000000000000 ffff880212cfb6d0 0000000000000200 ffff880212cfb6c0
Jul  1 21:58:36 nemi kernel: [ 3684.072479] Call Trace:
Jul  1 21:58:36 nemi kernel: [ 3684.072489]  [<ffffffffa063592e>] ? wdm_read+0x1a0/0x263 [cdc_wdm]
Jul  1 21:58:36 nemi kernel: [ 3684.072500]  [<ffffffff8110adb7>] ? vfs_read+0xa1/0xfb
Jul  1 21:58:36 nemi kernel: [ 3684.072509]  [<ffffffff81040589>] ? alarm_setitimer+0x35/0x64
Jul  1 21:58:36 nemi kernel: [ 3684.072517]  [<ffffffff8110aec7>] ? sys_read+0x45/0x6e
Jul  1 21:58:36 nemi kernel: [ 3684.072525]  [<ffffffff813725f9>] ? system_call_fastpath+0x16/0x1b
Jul  1 21:58:36 nemi kernel: [ 3684.072557] Code: <66> 66 90 c3 83 ff ed 89 f8 74 16 7f 06 83 ff a1 75 0a c3 83 ff f4

The WDM_READ flag is normally cleared by wdm_int_callback
before resubmitting the read urb, and set by wdm_in_callback
when this urb returns with data or an error.  But a crashing
device may cause both a read error and cancelling all urbs.
Make sure that the flag is cleared by wdm_read if the buffer
is empty.

We don't clear the flag on errors, as there may be pending
data in the buffer which should be processed.  The flag will
instead be cleared on the next wdm_read call.

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Acked-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-07-05 16:04:58 -07:00
Johan Hovold
b7d28e32c9 USB: metro-usb: fix tty_flip_buffer_push use
Do not set low_latency flag at open as tty_flip_buffer_push must not be
called in IRQ context with low_latency set.

Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-07-05 16:04:57 -07:00
Gaosen Zhang
aacef9c561 USB: option: Add MEDIATEK product ids
Signed-off-by: Gaosen Zhang <gaosen.zhang@mediatek.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-07-05 16:00:22 -07:00
Bjørn Mork
8e16e33c16 USB: option: add ZTE MF60
Switches into a composite device by ejecting the initial
driver CD.  The four interfaces are: QCDM, AT, QMI/wwan
and mass storage.  Let this driver manage the two serial
interfaces:

T:  Bus=02 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#= 28 Spd=480  MxCh= 0
D:  Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1
P:  Vendor=19d2 ProdID=1402 Rev= 0.00
S:  Manufacturer=ZTE,Incorporated
S:  Product=ZTE WCDMA Technologies MSM
S:  SerialNumber=xxxxx
C:* #Ifs= 4 Cfg#= 1 Atr=c0 MxPwr=500mA
I:* If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option
E:  Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=4ms
I:* If#= 1 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option
E:  Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=4ms
I:* If#= 2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=qmi_wwan
E:  Ad=83(I) Atr=03(Int.) MxPS=  64 Ivl=2ms
E:  Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=4ms
I:* If#= 3 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=usb-storage
E:  Ad=04(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=85(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms

Signed-off-by: Bjørn Mork <bjorn@mork.no>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-07-05 15:57:18 -07:00
Linus Torvalds
24eee627eb Merge branch 'fixes-for-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds
Pull leds fix from Bryan Wu:
 "Fix for heartbeat led trigger driver"

* 'fixes-for-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds:
  leds: heartbeat: fix bug on panic
2012-07-05 13:09:37 -07:00
Linus Torvalds
62ad64498a Merge branch 'fixes-for-grant' of git://sources.calxeda.com/kernel/linux
Pull DT fixes from Rob Herring:
 "Mainly some documentation updates and 2 fixes:

   - An export symbol fix for of_platform_populate from Stephen W.
   - A fix for the order compatible entries are matched to ensure the
     first compatible string is matched when there are multiple matches."

Normally these would go through Grant Likely (thus the "fixes-for-grant"
branch name), but Grant is in the middle of moving to Scotland, and is
practically offline until sometime in August. So pull directly from Rob.

* 'fixes-for-grant' of git://sources.calxeda.com/kernel/linux:
  of: match by compatible property first
  dt: mc13xxx.txt: Fix gpio number assignment
  dt: fsl-fec.txt: Fix gpio number assignment
  dt: fsl-mma8450.txt: Add missing 'reg' description
  dt: fsl-imx-esdhc.txt: Fix gpio number assignment
  dt: fsl-imx-cspi.txt: Fix comment about GPIOs used for chip selects
  of: Add Avionic Design vendor prefix
  of: export of_platform_populate()
2012-07-05 11:53:47 -07:00
Laxman Dewangan
626f9914a3 gpio: tps65910: initialize of_node of gpio_chip
Initialize the gpio chip's of_node to the device's node
to work with DT based system.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-07-05 15:44:22 +02:00
Uwe Kleine-König
33a4e985ba gpio/mxc: make irqs work for fsl,imx21-gpio devices
The chained handler was set for the platform device with id == 0.
When the gpio devices are instantiated by a device tree, all have id ==
-1 and so the handler was unset resulting in unusable gpio irqs on
i.MX21 and i.MX27 (when using oftree).

Acked-by: Shawn Guo <shawn.guo@linaro.org>
Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-07-05 15:40:35 +02:00
Stephen Warren
3996bfc787 gpio: export devm_gpio_request_one
Without this, modules can't use this API, leading to build failures.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-07-05 14:49:13 +02:00
Mark Brown
8cd578b6e2 gpiolib: wm8994: Pay attention to the value set when enabling as output
Not paying attention to the value being set is a bad thing because it
means that we'll not set the hardware up to reflect what was requested.
Not setting the hardware up to reflect what was requested means that the
caller won't get the results they wanted.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-07-05 14:49:10 +02:00
Christian Dietrich
afcc0f8c17 gpio/msm_v1: CONFIG_GPIO_MSM_V1 is only available on three SoCs
The feature GPIO_MSM_V1 is only available on three SoCs. On all other MSM SoCs
the INT_GPIO_GROUP{1,2} is undeclared, but Kconfig does allow such
configurations. Therefore the produced configuration is valid, but does not
compile. The problem is fixed by adding the missing Kconfig constraints.

drivers/gpio/gpio-msm-v1.c: In function ‘msm_init_gpio’:
drivers/gpio/gpio-msm-v1.c:629:26: error: 'INT_GPIO_GROUP1' undeclared
drivers/gpio/gpio-msm-v1.c:630:26: error: 'INT_GPIO_GROUP2' undeclared

Signed-off-by: Christian Dietrich <christian.dietrich@informatik.uni-erlangen.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-07-05 14:48:59 +02:00
Alessandro Rubini
2e2070c85a gpio-sta2x11: don't use pdata if null
If there is no platform data available, the driver shouldn't use the
pointer or it will oops.  Since things will mostly work nonetheless,
(the BIOS may have set up the pins properly), I'd better not fail the
probe even in this case.

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>
Acked-by: Giancarlo Asnaghi <giancarlo.asnaghi@st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-07-05 14:48:49 +02:00
Lars-Peter Clausen
9b7e31bbf4 Input: request threaded-only IRQs with IRQF_ONESHOT
Since commit 1c6c69525b ("genirq: Reject bogus threaded irq requests")
threaded IRQs without a primary handler need to be requested with
IRQF_ONESHOT, otherwise the request will fail. This patch adds the
IRQF_ONESHOT to input drivers where it is missing. Not modified by
this patch are those drivers where the requested IRQ will always be a
nested IRQ (e.g. because it's part of an MFD), since for this special
case IRQF_ONESHOT is not required to be specified when requesting the
IRQ.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2012-07-04 13:12:19 -07:00
Ohad Ben-Cohen
15fd943af5 rpmsg: make sure inflight messages don't invoke just-removed callbacks
When inbound messages arrive, rpmsg core looks up their associated
endpoint (by destination address) and then invokes their callback.

We've made sure that endpoints will never be de-allocated after they
were found by rpmsg core, but we also need to protect against the
(rare) scenario where the rpmsg driver was just removed, and its
callback function isn't available anymore.

This is achieved by introducing a callback mutex, which must be taken
before the callback is invoked, and, obviously, before it is removed.

Cc: stable <stable@vger.kernel.org>
Reported-by: Fernando Guzman Lugo <fernando.lugo@ti.com>
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
2012-07-04 11:51:59 +03:00
Ohad Ben-Cohen
5a081caa04 rpmsg: avoid premature deallocation of endpoints
When an inbound message arrives, the rpmsg core looks up its
associated endpoint and invokes the registered callback.

If a message arrives while its endpoint is being removed (because
the rpmsg driver was removed, or a recovery of a remote processor
has kicked in) we must ensure atomicity, i.e.:

- Either the ept is removed before it is found

or

- The ept is found but will not be freed until the callback returns

This is achieved by maintaining a per-ept reference count, which,
when drops to zero, will trigger deallocation of the ept.

With this in hand, it is now forbidden to directly deallocate
epts once they have been added to the endpoints idr.

Cc: stable <stable@vger.kernel.org>
Reported-by: Fernando Guzman Lugo <fernando.lugo@ti.com>
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
2012-07-04 11:51:42 +03:00
Ohad Ben-Cohen
e121aefa7d remoteproc: fix missing CONFIG_FW_LOADER configurations
Remoteproc requires user space firmware loading support, so
let's select FW_LOADER explicitly to avoid painful misconfigurations
(which only show up in runtime).

Cc: stable <stable@vger.kernel.org>
Reported-by: Mark Grosen <mgrosen@ti.com>
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
2012-07-04 11:01:12 +03:00
Alexander Holler
fb31fbeb64 leds: heartbeat: fix bug on panic
With commit 49dca5aebfdeadd4bf27b6cb4c60392147dc35a4 I introduced
a bug (visible if CONFIG_PROVE_RCU is enabled) which occures when a panic
has happened:

[ 1526.520230] ===============================
[ 1526.520230] [ INFO: suspicious RCU usage. ]
[ 1526.520230] 3.5.0-rc1+ #12 Not tainted
[ 1526.520230] -------------------------------
[ 1526.520230] /c/kernel-tests/mm/include/linux/rcupdate.h:436 Illegal context switch in RCU read-side critical section!
[ 1526.520230]
[ 1526.520230] other info that might help us debug this:
[ 1526.520230]
[ 1526.520230]
[ 1526.520230] rcu_scheduler_active = 1, debug_locks = 0
[ 1526.520230] 3 locks held by net.agent/3279:
[ 1526.520230]  #0:  (&mm->mmap_sem){++++++}, at: [<ffffffff82f85962>] do_page_fault+0x193/0x390
[ 1526.520230]  #1:  (panic_lock){+.+...}, at: [<ffffffff82ed2830>] panic+0x37/0x1d3
[ 1526.520230]  #2:  (rcu_read_lock){.+.+..}, at: [<ffffffff810b9b28>] rcu_lock_acquire+0x0/0x29
[ 1526.520230]
[ 1526.520230] stack backtrace:
[ 1526.520230] Pid: 3279, comm: net.agent Not tainted 3.5.0-rc1+ #12
[ 1526.520230] Call Trace:
[ 1526.520230]  [<ffffffff810e1570>] lockdep_rcu_suspicious+0x109/0x112
[ 1526.520230]  [<ffffffff810bfe3a>] rcu_preempt_sleep_check+0x45/0x47
[ 1526.520230]  [<ffffffff810bfe5a>] __might_sleep+0x1e/0x19a
[ 1526.520230]  [<ffffffff82f8010e>] down_write+0x26/0x81
[ 1526.520230]  [<ffffffff8276a966>] led_trigger_unregister+0x1f/0x9c
[ 1526.520230]  [<ffffffff8276def5>] heartbeat_reboot_notifier+0x15/0x19
[ 1526.520230]  [<ffffffff82f85bf5>] notifier_call_chain+0x96/0xcd
[ 1526.520230]  [<ffffffff82f85cba>] __atomic_notifier_call_chain+0x8e/0xff
[ 1526.520230]  [<ffffffff81094b7c>] ? kmsg_dump+0x37/0x1eb
[ 1526.520230]  [<ffffffff82f85d3f>] atomic_notifier_call_chain+0x14/0x16
[ 1526.520230]  [<ffffffff82ed28e1>] panic+0xe8/0x1d3
[ 1526.520230]  [<ffffffff811473e2>] out_of_memory+0x15d/0x1d3

So in case of a panic, now just turn of the LED. Other approaches like
scheduling a work to unregister the trigger aren't working because there
isn't much which still runs after a panic occured (except timers).

Signed-off-by: Alexander Holler <holler@ahsoftware.de>
Signed-off-by: Bryan Wu <bryan.wu@canonical.com>
2012-07-04 15:55:19 +08:00
Ohad Ben-Cohen
d50394266b remoteproc/omap: fix randconfig unmet direct dependencies
OMAP_REMOTEPROC selects REMOTEPROC and RPMSG, both of which depend
on EXPERIMENTAL, so let's have OMAP_REMOTEPROC depend on EXPERIMENTAL
too, in order to avoid the below randconfig warnings.

warning: (OMAP_REMOTEPROC) selects REMOTEPROC which has unmet direct dependencies (EXPERIMENTAL)
warning: (OMAP_REMOTEPROC) selects RPMSG which has unmet direct dependencies (EXPERIMENTAL)

Cc: stable <stable@vger.kernel.org>
Reported-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
2012-07-04 10:51:10 +03:00
Linus Torvalds
9e85a6f9dc The previous set of common clk fixes for -rc5 left an uninitialized int
which could lead to bad array indexing when switching clock parents.
 The issue is fixed with a trivial change to the code flow in
 __clk_set_parent.
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Merge tag 'clk-fixes-for-linus' of git://git.linaro.org/people/mturquette/linux

Pull fix to common clk framework from Michael Turquette:
 "The previous set of common clk fixes for -rc5 left an uninitialized
  int which could lead to bad array indexing when switching clock
  parents.  The issue is fixed with a trivial change to the code flow in
  __clk_set_parent."

* tag 'clk-fixes-for-linus' of git://git.linaro.org/people/mturquette/linux:
  clk: fix parent validation in __clk_set_parent()
2012-07-03 18:06:49 -07:00
Linus Torvalds
6c8addcb76 md - fix build error in previous patch.
I really shouldn't do important things late in the day.  It seems
 that I get careless.
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Merge tag 'md-3.5-fixes' of git://neil.brown.name/md

Pull raid10 build failure fix from NeilBrown:
 "I really shouldn't do important things late in the day.  It seems that
  I get careless."

* tag 'md-3.5-fixes' of git://neil.brown.name/md:
  md/raid10: fix careless build error
2012-07-03 18:05:35 -07:00
Linus Torvalds
5672874889 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking update from David Miller:

 1) Fix RX sequence number handling in mwifiex, from Stone Piao.

 2) Netfilter ipset mis-compares device names, fix from Florian
    Westphal.

 3) Fix route leak in ipv6 IPVS, from Eric Dumazet.

 4) NFS fixes.  Several buffer overflows in NCI layer from Dan
    Rosenberg, and release sock OOPS'er fix from Eric Dumazet.

 5) Fix WEP handling ath9k, we started using a bit the chip provides to
    indicate undecrypted packets but that bit turns out to be unreliable
    in certain configurations.  Fix from Felix Fietkau.

 6) Fix Kconfig dependency bug in wlcore, from Randy Dunlap.

 7) New USB IDs for rtlwifi driver from Larry Finger.

 8) Fix crashes in qmi_wwan usbnet driver when disconnecting, from Bjørn
    Mork.

 9) Gianfar driver programs coalescing settings properly in single queue
    mode, but does not do so in multi-queue mode.  Fix from Claudiu
    Manoil.

10) Missing module.h include in davinci_cpdma.c, from Daniel Mack.

11) Need dummy handler for IPSET_CMD_NONE otherwise we crash in ipset if
    we get this via nfnetlink, fix from Tomasz Bursztyka.

12) Missing RCU unlock in nfnetlink error path, also from Tomasz.

13) Fix divide by zero in igbvf when the user tries to set an RX
    coalescing value of 0 usecs, from Mitch A Williams.

14) We can process SCTP sacks for the wrong transport, oops.  Fix from
    Neil Horman.

15) Remove hw IP payload checksumming from e1000e driver.  This has zery
    value in our stack, and turning it on creates a very unintuitive
    restriction for users when using jumbo MTUs.

    Specifically, when IP payload checksums are on you cannot use both
    receive hashing offload and jumbo MTU.  Fix from Bruce Allan.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (27 commits)
  e1000e: remove use of IP payload checksum
  sctp: be more restrictive in transport selection on bundled sacks
  igbvf: fix divide by zero
  netfilter: nfnetlink: fix missing rcu_read_unlock in nfnetlink_rcv_msg
  netfilter: ipset: fix crash if IPSET_CMD_NONE command is sent
  davinci_cpdma: include linux/module.h
  gianfar: Fix RXICr/TXICr programming for multi-queue mode
  net: Downgrade CAP_SYS_MODULE deprecated message from error to warning.
  net: qmi_wwan: fix Oops while disconnecting
  mwifiex: fix memory leak associated with IE manamgement
  ath9k: fix panic caused by returning a descriptor we have queued for reuse
  mac80211: correct behaviour on unrecognised action frames
  ath9k: enable serialize_regmode for non-PCIE AR9287
  rtlwifi: rtl8192cu: New USB IDs
  NFC: Return from rawsock_release when sk is NULL
  iwlwifi: fix activating inactive stations
  wlcore: drop INET dependency
  ath9k: fix dynamic WEP related regression
  NFC: Prevent multiple buffer overflows in NCI
  netfilter: update location of my trees
  ...
2012-07-03 18:01:54 -07:00
NeilBrown
10684112c9 md/raid10: fix careless build error
build error introduced by commit b357f04a67c2aeee8

That function doesn't get extra args until a later patch.  Bother.

Reported-by: Fengguang Wu <wfg@linux.intel.com> 
Reported-by: Simon Kirby <sim@hostway.ca>
Reported-by: Tobias Klausmann <tobias.johannes.klausmann@mni.thm.de>
Signed-off-by: NeilBrown <neilb@suse.de>
2012-07-04 09:35:35 +10:00