Commit graph

535448 commits

Author SHA1 Message Date
NeilBrown
49895bcc7e md/raid5: don't let shrink_slab shrink too far.
I have a report of drop_one_stripe() called from
raid5_cache_scan() apparently finding ->max_nr_stripes == 0.

This should not be allowed.

So add a test to keep max_nr_stripes above min_nr_stripes.

Also use a 'mask' rather than a 'mod' in drop_one_stripe
to ensure 'hash' is valid even if max_nr_stripes does reach zero.


Fixes: edbe83ab4c ("md/raid5: allow the stripe_cache to grow and shrink.")
Cc: stable@vger.kernel.org (4.1 - please release with 2d5b569b66)
Reported-by: Tomas Papan <tomas.papan@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.com>
2015-08-03 17:10:56 +10:00
Benjamin Randazzo
b6878d9e03 md: use kzalloc() when bitmap is disabled
In drivers/md/md.c get_bitmap_file() uses kmalloc() for creating a
mdu_bitmap_file_t called "file".

5769         file = kmalloc(sizeof(*file), GFP_NOIO);
5770         if (!file)
5771                 return -ENOMEM;

This structure is copied to user space at the end of the function.

5786         if (err == 0 &&
5787             copy_to_user(arg, file, sizeof(*file)))
5788                 err = -EFAULT

But if bitmap is disabled only the first byte of "file" is initialized
with zero, so it's possible to read some bytes (up to 4095) of kernel
space memory from user space. This is an information leak.

5775         /* bitmap disabled, zero the first byte and copy out */
5776         if (!mddev->bitmap_info.file)
5777                 file->pathname[0] = '\0';

Signed-off-by: Benjamin Randazzo <benjamin@randazzo.fr>
Signed-off-by: NeilBrown <neilb@suse.com>
2015-08-03 14:56:02 +10:00
Chanwoo Choi
3c19d237dd thermal: exynos: Remove unused code related to platform_data on probe()
This patch removes the unused code related to struct exynos_tmu_platform_data
because exynos_tmu_probe() don't handle the struct exynos_tmu_platform_data *pdata.

Test HW: Exynos4412 - Trats2 board

Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
Tested-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2015-08-02 19:36:57 -07:00
Chanwoo Choi
f87e6bd3f7 thermal: exynos: Add the dependency of CONFIG_THERMAL_OF instead of CONFIG_OF
The exynos thermal driver use the of_thermal_*() API to parse the basic data
for thermal management from devicetree file. So, if CONFIG_EXYNOS_THERMAL is
selected without CONFIG_THERMAL_OF, kernel can build it without any problem.
But, exynos thermal driver is not working with following error log. This patch
add the dependency of CONFIG_THERMAL_OF instead of CONFIG_OF.

[    1.458644] get_th_reg: Cannot get trip points from of-thermal.c!
[    1.459096] get_th_reg: Cannot get trip points from of-thermal.c!
[    1.465211] exynos4412_tmu_initialize: No CRITICAL trip point defined at of-thermal.c!

Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2015-08-02 19:36:57 -07:00
Krzysztof Kozlowski
5f09a5cbd1 thermal: exynos: Disable the regulator on probe failure
During probe the regulator (if present) was enabled but not disabled in
case of failure. So an unsuccessful probe lead to enabling the
regulator which was actually not needed because the device was not
enabled.

Additionally each deferred probe lead to increase of regulator enable
count so it would not be effectively disabled during removal of the
device.

Test HW: Exynos4412 - Trats2 board

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Fixes: 498d22f616 ("thermal: exynos: Support for TMU regulator defined at device tree")
Cc: <stable@vger.kernel.org>
Reviewed-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
Tested-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2015-08-02 19:36:57 -07:00
Javi Merino
d5f8310901 thermal: power_allocator: trace the real requested power
The power allocator governor uses ftrace to output a bunch of internal
data for debugging and tuning.  Currently, the requested power it
outputs is the "weighted" requested power, that is, what each cooling
device has requested multiplied by the cooling device weight.  It is
more useful to trace the real request, without any weight being
applied.

This commit only affects the data traced, there is no functional change.

Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Signed-off-by: Javi Merino <javi.merino@arm.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2015-08-02 19:36:57 -07:00
Viresh Kumar
528464eaa4 thermal: remove dangling 'weight_attr' device file
This file isn't getting removed while we unbind a device from thermal
zone. And this causes following messages when the device is registered
again:

WARNING: CPU: 0 PID: 2228 at /home/viresh/linux/fs/sysfs/dir.c:31 sysfs_warn_dup+0x60/0x70()
sysfs: cannot create duplicate filename '/devices/virtual/thermal/thermal_zone0/cdev0_weight'
Modules linked in: cpufreq_dt(+) [last unloaded: cpufreq_dt]
CPU: 0 PID: 2228 Comm: insmod Not tainted 4.2.0-rc3-00059-g44fffd9473eb #272
Hardware name: SAMSUNG EXYNOS (Flattened Device Tree)
[<c00153e8>] (unwind_backtrace) from [<c0012368>] (show_stack+0x10/0x14)
[<c0012368>] (show_stack) from [<c053a684>] (dump_stack+0x84/0xc4)
[<c053a684>] (dump_stack) from [<c002284c>] (warn_slowpath_common+0x80/0xb0)
[<c002284c>] (warn_slowpath_common) from [<c00228ac>] (warn_slowpath_fmt+0x30/0x40)
[<c00228ac>] (warn_slowpath_fmt) from [<c012d524>] (sysfs_warn_dup+0x60/0x70)
[<c012d524>] (sysfs_warn_dup) from [<c012d244>] (sysfs_add_file_mode_ns+0x13c/0x190)
[<c012d244>] (sysfs_add_file_mode_ns) from [<c012d2d4>] (sysfs_create_file_ns+0x3c/0x48)
[<c012d2d4>] (sysfs_create_file_ns) from [<c03c04a8>] (thermal_zone_bind_cooling_device+0x260/0x358)
[<c03c04a8>] (thermal_zone_bind_cooling_device) from [<c03c2e70>] (of_thermal_bind+0x88/0xb4)
[<c03c2e70>] (of_thermal_bind) from [<c03c10d0>] (__thermal_cooling_device_register+0x17c/0x2e0)
[<c03c10d0>] (__thermal_cooling_device_register) from [<c03c3f50>] (__cpufreq_cooling_register+0x3a0/0x51c)
[<c03c3f50>] (__cpufreq_cooling_register) from [<bf00505c>] (cpufreq_ready+0x44/0x88 [cpufreq_dt])
[<bf00505c>] (cpufreq_ready [cpufreq_dt]) from [<c03d6c30>] (cpufreq_add_dev+0x4a0/0x7dc)
[<c03d6c30>] (cpufreq_add_dev) from [<c02cd3ec>] (subsys_interface_register+0x94/0xd8)
[<c02cd3ec>] (subsys_interface_register) from [<c03d785c>] (cpufreq_register_driver+0x10c/0x1f0)
[<c03d785c>] (cpufreq_register_driver) from [<bf0057d4>] (dt_cpufreq_probe+0x60/0x8c [cpufreq_dt])
[<bf0057d4>] (dt_cpufreq_probe [cpufreq_dt]) from [<c02d03e4>] (platform_drv_probe+0x44/0xa4)
[<c02d03e4>] (platform_drv_probe) from [<c02cead8>] (driver_probe_device+0x174/0x2b4)
[<c02cead8>] (driver_probe_device) from [<c02ceca4>] (__driver_attach+0x8c/0x90)
[<c02ceca4>] (__driver_attach) from [<c02cd078>] (bus_for_each_dev+0x68/0x9c)
[<c02cd078>] (bus_for_each_dev) from [<c02ce2f0>] (bus_add_driver+0x19c/0x214)
[<c02ce2f0>] (bus_add_driver) from [<c02cf490>] (driver_register+0x78/0xf8)
[<c02cf490>] (driver_register) from [<c0009710>] (do_one_initcall+0x8c/0x1d4)
[<c0009710>] (do_one_initcall) from [<c05396b0>] (do_init_module+0x5c/0x1b8)
[<c05396b0>] (do_init_module) from [<c0086490>] (load_module+0xd34/0xed8)
[<c0086490>] (load_module) from [<c0086704>] (SyS_init_module+0xd0/0x120)
[<c0086704>] (SyS_init_module) from [<c000f480>] (ret_fast_syscall+0x0/0x3c)
---[ end trace 3be0e7b7dc6e3c4f ]---

Fixes: db91651311 ("thermal: export weight to sysfs")
Acked-by: Javi Merino <javi.merino@arm.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2015-08-02 19:36:57 -07:00
NeilBrown
423f04d63c md/raid1: extend spinlock to protect raid1_end_read_request against inconsistencies
raid1_end_read_request() assumes that the In_sync bits are consistent
with the ->degaded count.
raid1_spare_active updates the In_sync bit before the ->degraded count
and so exposes an inconsistency, as does error()
So extend the spinlock in raid1_spare_active() and error() to hide those
inconsistencies.

This should probably be part of
  Commit: 34cab6f420 ("md/raid1: fix test for 'was read error from
  last working device'.")
as it addresses the same issue.  It fixes the same bug and should go
to -stable for same reasons.

Fixes: 76073054c9 ("md/raid1: clean up read_balance.")
Cc: stable@vger.kernel.org (v3.0+)
Signed-off-by: NeilBrown <neilb@suse.com>
2015-08-03 12:29:42 +10:00
Linus Torvalds
74d33293e4 Linux 4.2-rc5 2015-08-02 18:34:55 -07:00
Linus Torvalds
d08c31812e powerpc fixes for 4.2 #2
- TCE table memory calculation fix from Alexey
 - Build fix for ans-lcd from Luis
 - Unbalanced IRQ warning fix from Alistair
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Merge tag 'powerpc-4.2-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc fixes from Michael Ellerman:
 - TCE table memory calculation fix from Alexey
 - Build fix for ans-lcd from Luis
 - Unbalanced IRQ warning fix from Alistair

* tag 'powerpc-4.2-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc/eeh-powernv: Fix unbalanced IRQ warning
  macintosh/ans-lcd: fix build failure after module_init/exit relocation
  powerpc/powernv/ioda2: Fix calculation for memory allocated for TCE table
2015-08-02 18:07:36 -07:00
Hartmut Knaack
b41e63cf83 iio:accel:stk8312: check for invalid value
Revision 1.2 of the datasheet recommends on page 22 to only write non-zero
values read from OTP register 0x70 into AFECTRL register.

Signed-off-by: Hartmut Knaack <knaack.h@gmx.de>
Reviewed-by: Tiberiu Breana <tiberiu.a.breana@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-08-02 19:13:49 +01:00
Hartmut Knaack
946448e08e iio:accel:stk8312: add triggered buffer dependency
Add the still missing dependencies for triggered buffer support.

Fixes: 	95c12bba51 ("iio: accel: Add buffer mode for Sensortek STK8312")

Signed-off-by: Hartmut Knaack <knaack.h@gmx.de>
Reviewed-by: Tiberiu Breana <tiberiu.a.breana@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-08-02 19:12:07 +01:00
Hartmut Knaack
546384c968 iio:adc:berlin2-adc: use channel-array size directly
Drop the otherwise unused definition of the channel-array size and use it
directly in _probe - makes it a bit more obvious.

Signed-off-by: Hartmut Knaack <knaack.h@gmx.de>
Acked-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-08-02 19:08:45 +01:00
Hartmut Knaack
609e9d88f2 iio:adc:berlin2-adc: use short operator format
Use augmented assignment to subtract the offset for negative temperature
values.
Specify the amount of private data to be allocated through
devm_iio_device_alloc() with sizeof(*priv), as it is shorter and common
practice in IIO.

Signed-off-by: Hartmut Knaack <knaack.h@gmx.de>
Acked-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-08-02 19:08:13 +01:00
Hartmut Knaack
688febbd16 iio:adc:berlin2-adc: constify iio_chan_spec
Mark berlin2_adc_channels array as constant.

Signed-off-by: Hartmut Knaack <knaack.h@gmx.de>
Acked-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-08-02 19:07:50 +01:00
Hartmut Knaack
19d566420b iio:adc:berlin2-adc: pass up real error code
Pass up the real error code returned by platform_get_irq_byname().

Signed-off-by: Hartmut Knaack <knaack.h@gmx.de>
Acked-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-08-02 19:05:51 +01:00
Linus Torvalds
27667f4744 i915: temporary fix for DP MST docking station NULL pointer dereference
Ted Ts'o reports that his Lenovo T540p ThinkPad crashes at boot if
attached to the docking station.  This is a regression that he was able
to bisect to commit 8c7b5ccb72: "drm/i915: Use atomic helpers for
computing changed flags:"

The reason seems to be the new call to drm_atomic_helper_check_modeset()
added to intel_modeset_compute_config(), which in turn calls
update_connector_routing(), and somehow ends up picking a NULL crtc for
the connector state, causing the subsequent drm_crtc_index() to OOPS.

Daniel Vetter says that the fundamental issue seems to be confusion in
the encoder selection, and this isn't the right fix, but while he chases
down the proper fix, this at least avoids the NULL pointer dereference
and makes Ted's docking station work again.

Reported-bisected-and-tested-by: Theodore Ts'o <tytso@mit.edu>
Cc: Daniel Vetter <daniel.vetter@intel.com>
Cc: Mani Nikula <jani.nikula@linux.intel.com>
Cc: Dave Airlie <airlied@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-08-02 11:02:16 -07:00
Joo Aun Saw
5e37c52392 tools: iio: iio_utils: Make calc_digits static
Signed-off-by: Joo Aun Saw <jasaw@dius.com.au>
Acked-by: Daniel Baluta <daniel.baluta@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-08-02 18:46:26 +01:00
Joo Aun Saw
280f09256a tools: iio: iio_utils: remove unnecessary define guard
Signed-off-by: Joo Aun Saw <jasaw@dius.com.au>
Acked-by: Daniel Baluta <daniel.baluta@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-08-02 18:45:12 +01:00
Irina Tirdea
e7231491ce tools: iio: print error message when buffer enable fails
Running generic_buffer without enabling any channel of the
sensor will fail without printing any error message.

Add an error message that indicates buffer enable failed.

Signed-off-by: Irina Tirdea <irina.tirdea@intel.com>
Acked-by: Hartmut Knaack <knaack.h@gmx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-08-02 18:39:27 +01:00
Irina Tirdea
ae067cb68d tools: iio: fix mask for 32 bit sensor data
When the the sensor data uses 32 bits out of 32, generic_buffer prints
the value 0 for all data read.

In this case, the mask is shifted 32 bits, which is beyond the size of
an integer. This will lead to the mask always being 0. Before printing,
the mask is applied to the raw value, thus generating a final value of 0.

Fix the mask by shifting a 64 bit value instead of an integer.

Signed-off-by: Irina Tirdea <irina.tirdea@intel.com>
Acked-by: Hartmut Knaack <knaack.h@gmx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-08-02 18:38:22 +01:00
Cristina Opriceana
2854c098e2 include: linux: iio: Add missing kernel doc field
Fix kernel doc for the iio_dev_attr structure by adding its missing field.

Signed-off-by: Cristina Opriceana <cristina.opriceana@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-08-02 18:36:05 +01:00
Cristina Opriceana
e52e95199d include: linux: iio: Fix function parameter name in kernel doc
Fix buffer name from kernel doc according to the function parameter.

Signed-off-by: Cristina Opriceana <cristina.opriceana@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-08-02 18:34:18 +01:00
Cristina Opriceana
a316c01d59 iio: event: Add missing fields in kernel docs
Fix kernel docs warnings by adding the missing fields,
each with its associated description.

Signed-off-by: Cristina Opriceana <cristina.opriceana@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-08-02 18:33:42 +01:00
Cristina Opriceana
0123635a77 iio: buffer: Fix kernel docs warnings
Fix kernel docs for structures and functions in order to
remove some warnings when the documentation gets generated.

Signed-off-by: Cristina Opriceana <cristina.opriceana@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-08-02 18:27:09 +01:00
Cristina Opriceana
2498dcf6e0 iio: core: Add function params for kernel docs
This patch adds the missing fields in kernel docs to remove
some warnings that appear when the IIO Documentation DocBook
is generated.

Signed-off-by: Cristina Opriceana <cristina.opriceana@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-08-02 18:24:39 +01:00
Irina Tirdea
5ab744d0d6 iio: magn: bmc150_magn: do not set power state twice when setting trigger state
When setting the trigger state, the device power state is set through
buffer preenable and postdisable hooks. There is no need
to also set it in the trigger set state call.

Remove duplicate set power state from the trigger set
state call.

Signed-off-by: Irina Tirdea <irina.tirdea@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-08-02 18:19:57 +01:00
Irina Tirdea
019cc46d0a iio: magn: bmc150_magn: add locking comment for runtime resume
Runtime resume function is called with the data->mutex lock held.
Add a comment to indicate this.

Signed-off-by: Irina Tirdea <irina.tirdea@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-08-02 18:18:59 +01:00
Hartmut Knaack
1506f3cd0b iio:magnetometer:bmc150_magn: use descriptive name for mask
Define and use a descriptive name for the repetition registers data mask,
instead of a 'magic' value.

Signed-off-by: Hartmut Knaack <knaack.h@gmx.de>
Acked-by: Irina Tirdea <irina.tirdea@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-08-02 18:04:29 +01:00
Hartmut Knaack
3021678a94 iio:magnetometer:bmc150_magn: expand mutex in trigger_handler
Keep the mutex locked, until the content of data->buffer has been pushed
out.

Signed-off-by: Hartmut Knaack <knaack.h@gmx.de>
Acked-by: Irina Tirdea <irina.tirdea@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-08-02 18:03:30 +01:00
Crt Mori
f9ba1ab4d1 iio: mlx90614: Define magic numbers
Translates the magic constant numbers to named macros and add some
additional comments about their meaning.

The diff is made towards togreg branch as that branch seems to have the
most recent updates of mlx90614 driver (many are yet to be merged).

Signed-off-by: Crt Mori <cmo@melexis.com>
Acked-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-08-02 17:50:15 +01:00
Linus Torvalds
d4edea4038 SCSI fixes on 20150802
A set of three fixes for the ipr driver and one fairly major one for memory
 leaks in the mq path of SCSI.
 
 Signed-off-by: James Bottomley <JBottomley@Odin.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "A set of three fixes for the ipr driver and one fairly major one for
  memory leaks in the mq path of SCSI"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: fix memory leak with scsi-mq
  ipr: Fix invalid array indexing for HRRQ
  ipr: Fix incorrect trace indexing
  ipr: Fix locking for unit attention handling
2015-08-02 09:36:21 -07:00
Teodora Baluta
9e35d366a1 iio: mmc35240: minor change to improve code readibility
This patch changes two variables to arrays to improve code readibility.

Signed-off-by: Teodora Baluta <teodora.baluta@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-08-02 17:35:11 +01:00
Linus Torvalds
30c7b56d63 ARM: SoC fixes
Things are calming down nicely here w.r.t. fixes. This batch includes two
 week's worth since I missed to send before -rc4.
 
 Nothing particularly scary to point out, smaller fixes here and
 there. Shortlog describes it pretty well.
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Merge tag 'armsoc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Olof Johansson:
 "Things are calming down nicely here w.r.t. fixes.  This batch
  includes two week's worth since I missed to send before -rc4.

  Nothing particularly scary to point out, smaller fixes here and there.
  Shortlog describes it pretty well"

* tag 'armsoc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: dts: keystone: fix dt bindings to use post div register for mainpll
  ARM: nomadik: disable UART0 on Nomadik boards
  ARM: dts: i.MX35: Fix can support.
  ARM: OMAP2+: hwmod: Fix _wait_target_ready() for hwmods without sysc
  ARM: dts: add CPU OPP and regulator supply property for exynos4210
  ARM: dts: Update video-phy node with syscon phandle for exynos3250
  ARM: DRA7: hwmod: fix gpmc hwmod
2015-08-02 09:12:46 -07:00
Javier Martinez Canillas
119c4fce68 iio: Export OF module alias information in missing drivers
The I2C core always reports the MODALIAS uevent as "i2c:<client name"
regardless if the driver was matched using the I2C id_table or the
of_match_table. So technically there's no need for a driver to export
the OF table since currently it's not used.

In fact, the I2C device ID table is mandatory for I2C drivers since
a i2c_device_id is passed to the driver's probe function even if the
I2C core used the OF table to match the driver.

And since the I2C core uses different tables, OF-only drivers needs to
have duplicated data that has to be kept in sync and also the dev node
compatible manufacturer prefix is stripped when reporting the MODALIAS.

To avoid the above, the I2C core behavior may be changed in the future
to not require an I2C device table for OF-only drivers and report the
OF module alias. So, it's better to also export the OF table to prevent
breaking module autoloading if that happens.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-08-02 16:36:00 +01:00
Javier Martinez Canillas
58e446fcc6 iio: Export I2C module alias information in missing drivers
The I2C core always reports the MODALIAS uevent as "i2c:<client name"
regardless if the driver was matched using the I2C id_table or the
of_match_table. So the driver needs to export the I2C table and this
be built into the module or udev won't have the necessary information
to auto load the correct module when the device is added.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-08-02 16:35:01 +01:00
Linus Torvalds
01183609ab Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull VFS fix from Al Viro:
 "Spurious ENOTDIR fix"

This should fix the problems reported by Dominique Martinet and Hugh
Dickins.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  link_path_walk(): be careful when failing with ENOTDIR
2015-08-01 17:42:14 -07:00
Al Viro
97242f99a0 link_path_walk(): be careful when failing with ENOTDIR
In RCU mode we might end up with dentry evicted just we check
that it's a directory.  In such case we should return ECHILD
rather than ENOTDIR, so that pathwalk would be retries in non-RCU
mode.

Breakage had been introduced in commit b18825a - prior to that
we were looking at nd->inode, which had been fetched before
verifying that ->d_seq was still valid.  That form of check
would only be satisfied if at some point the pathname prefix
would indeed have resolved to a non-directory.  The fix consists
of checking ->d_seq after we'd run into a non-directory dentry,
and failing with ECHILD in case of mismatch.

Note that all branches since 3.12 have that problem...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-08-01 20:18:38 -04:00
Linus Torvalds
3f6d9e0896 dmaengine fixes for 4.2-rc5
We had a regression due to reuse of descriptor so we have reverted that.
   Rest are driver fixes
      at_hdmac and at_xdmac for residue, trannfer width, and channel config
      pl330 final fix for dma fails and overflow issue
      xgene resouce map fix
      mv_xor big endian op fix
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Merge tag 'dmaengine-fix-4.2-rc5' of git://git.infradead.org/users/vkoul/slave-dma

Pull dmaengine fixes from Vinod Koul:
 "We had a regression due to reuse of descriptor so we have reverted
  that.

  The rest are driver fixes:

   - at_hdmac and at_xdmac for residue, trannfer width, and channel config
   - pl330 final fix for dma fails and overflow issue
   - xgene resouce map fix
   - mv_xor big endian op fix"

* tag 'dmaengine-fix-4.2-rc5' of git://git.infradead.org/users/vkoul/slave-dma:
  Revert "dmaengine: virt-dma: don't always free descriptor upon completion"
  dmaengine: mv_xor: fix big endian operation in register mode
  dmaengine: xgene-dma: Fix the resource map to handle overlapping
  dmaengine: at_xdmac: fix transfer data width in at_xdmac_prep_slave_sg()
  dmaengine: at_hdmac: fix residue computation
  dmaengine: at_xdmac: fix bug about channel configuration
  dmaengine: pl330: Really fix choppy sound because of wrong residue calculation
  dmaengine: pl330: Fix overflow when reporting residue in memcpy
2015-08-01 12:47:04 -07:00
Linus Torvalds
3270c8eacc Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fixlets from Thomas Gleixner:
 "Just two updates to the maintainers file"

* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  MAINTAINERS: Appoint Jiang and Marc as irqdomain maintainers
  MAINTAINERS: Appoint Marc Zyngier as irqchips co-maintainer
2015-08-01 09:47:11 -07:00
Linus Torvalds
51d2e09b94 Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar:
 "Fallout from the recent NMI fixes: make x86 LDT handling more robust.

  Also some EFI fixes"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/ldt: Make modify_ldt synchronous
  x86/xen: Probe target addresses in set_aliased_prot() before the hypercall
  x86/irq: Use the caller provided polarity setting in mp_check_pin_attr()
  efi: Check for NULL efi kernel parameters
  x86/efi: Use all 64 bit of efi_memmap in setup_e820()
2015-08-01 09:16:33 -07:00
Roger Quadros
c934b36127 phy: ti-pipe3: i783 workaround for SATA lockup after dpll unlock/relock
SATA_PLL_SOFT_RESET bit of CTRL_CORE_SMA_SW_0 must be toggled
between a SATA DPLL unlock and re-lock to prevent SATA lockup.

Introduce a new DT parameter 'syscon-pllreset' to provide the syscon
regmap access to this register which sits in the control module.

If the register is not provided we fallback to the old behaviour
i.e. SATA DPLL refclk will not be disabled and we prevent SoC low
power states.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2015-08-01 15:52:58 +05:30
Hans de Goede
7167bf8b7f phy-sun4i-usb: Add missing EXPORT_SYMBOL_GPL for sun4i_usb_phy_set_squelch_detect
sun4i_usb_phy_set_squelch_detect is used by other code, which may be built
as a module, so it should be exported.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2015-08-01 15:52:58 +05:30
Vladimir Zapolskiy
e331146973 i2c: fix leaked device refcount on of_find_i2c_* error path
If of_find_i2c_device_by_node() or of_find_i2c_adapter_by_node() find
a device by node, but its type does not match, a reference to that
device is still held. This change fixes the problem.

Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2015-08-01 12:11:58 +02:00
Greg Kroah-Hartman
eaf7e98d43 Update extcon for v4.2-rc5
This patchset fix the following two issue:
 - Fix hang issue when using the extcon_[get|set]_cable_state() because these
 functions use the cable index instead of cable id.
 - Fix NULL pointer error of extcon-palmas.c by removing unneeded kfree() call.
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Merge tag 'extcon-fixes-for-4.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/extcon into char-misc-linus

Chanwoo writes:

Update extcon for v4.2-rc5

This patchset fix the following two issue:
- Fix hang issue when using the extcon_[get|set]_cable_state() because these
functions use the cable index instead of cable id.
- Fix NULL pointer error of extcon-palmas.c by removing unneeded kfree() call.
2015-07-31 17:20:52 -07:00
Linus Torvalds
7c764cec37 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:

 1) Must teardown SR-IOV before unregistering netdev in igb driver, from
    Alex Williamson.

 2) Fix ipv6 route unreachable crash in IPVS, from Alex Gartrell.

 3) Default route selection in ipv4 should take the prefix length, table
    ID, and TOS into account, from Julian Anastasov.

 4) sch_plug must have a reset method in order to purge all buffered
    packets when the qdisc is reset, likewise for sch_choke, from WANG
    Cong.

 5) Fix deadlock and races in slave_changelink/br_setport in bridging.
    From Nikolay Aleksandrov.

 6) mlx4 bug fixes (wrong index in port even propagation to VFs,
    overzealous BUG_ON assertion, etc.) from Ido Shamay, Jack
    Morgenstein, and Or Gerlitz.

 7) Turn off klog message about SCTP userspace interface compat that
    makes no sense at all, from Daniel Borkmann.

 8) Fix unbounded restarts of inet frag eviction process, causing NMI
    watchdog soft lockup messages, from Florian Westphal.

 9) Suspend/resume fixes for r8152 from Hayes Wang.

10) Fix busy loop when MSG_WAITALL|MSG_PEEK is used in TCP recv, from
    Sabrina Dubroca.

11) Fix performance regression when removing a lot of routes from the
    ipv4 routing tables, from Alexander Duyck.

12) Fix device leak in AF_PACKET, from Lars Westerhoff.

13) AF_PACKET also has a header length comparison bug due to signedness,
    from Alexander Drozdov.

14) Fix bug in EBPF tail call generation on x86, from Daniel Borkmann.

15) Memory leaks, TSO stats, watchdog timeout and other fixes to
    thunderx driver from Sunil Goutham and Thanneeru Srinivasulu.

16) act_bpf can leak memory when replacing programs, from Daniel
    Borkmann.

17) WOL packet fixes in gianfar driver, from Claudiu Manoil.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (79 commits)
  stmmac: fix missing MODULE_LICENSE in stmmac_platform
  gianfar: Enable device wakeup when appropriate
  gianfar: Fix suspend/resume for wol magic packet
  gianfar: Fix warning when CONFIG_PM off
  act_pedit: check binding before calling tcf_hash_release()
  net: sk_clone_lock() should only do get_net() if the parent is not a kernel socket
  net: sched: fix refcount imbalance in actions
  r8152: reset device when tx timeout
  r8152: add pre_reset and post_reset
  qlcnic: Fix corruption while copying
  act_bpf: fix memory leaks when replacing bpf programs
  net: thunderx: Fix for crash while BGX teardown
  net: thunderx: Add PCI driver shutdown routine
  net: thunderx: Fix crash when changing rss with mutliple traffic flows
  net: thunderx: Set watchdog timeout value
  net: thunderx: Wakeup TXQ only if CQE_TX are processed
  net: thunderx: Suppress alloc_pages() failure warnings
  net: thunderx: Fix TSO packet statistic
  net: thunderx: Fix memory leak when changing queue count
  net: thunderx: Fix RQ_DROP miscalculation
  ...
2015-07-31 17:10:56 -07:00
Linus Torvalds
acea568fa9 Merge branch 'for-linus-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs
Pull btrfs fixes from Chris Mason:
 "Filipe fixed up a hard to trigger ENOSPC regression from our merge
  window pull, and we have a few other smaller fixes"

* 'for-linus-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
  Btrfs: fix quick exhaustion of the system array in the superblock
  btrfs: its btrfs_err() instead of btrfs_error()
  btrfs: Avoid NULL pointer dereference of free_extent_buffer when read_tree_block() fail
  btrfs: Fix lockdep warning of btrfs_run_delayed_iputs()
2015-07-31 17:05:37 -07:00
Linus Torvalds
c6fd4fc708 sound fixes for 4.2-rc5
This became a relative big update as it includes the collected
 ASoC fixes.  There are a few fixes in ASoC core side, mostly for DAPM
 and the new topology API.  The rest are various ASoC driver-specific
 fixes, as well as the usual HD-audio and USB-audio quirks.
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Merge tag 'sound-4.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "This became a relative big update as it includes the collected ASoC
  fixes.  There are a few fixes in ASoC core side, mostly for DAPM and
  the new topology API.  The rest are various ASoC driver-specific
  fixes, as well as the usual HD-audio and USB-audio quirks"

* tag 'sound-4.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (29 commits)
  ALSA: hda - Fix MacBook Pro 5,2 quirk
  ALSA: hda - Fix race between PM ops and HDA init/probe
  ALSA: usb-audio: add dB range mapping for some devices
  ALSA: hda - Apply a fixup to Dell Vostro 5480
  ALSA: hda - Add pin quirk for the headset mic jack detection on Dell laptop
  ALSA: hda - Apply fixup for another Toshiba Satellite S50D
  ALSA: fireworks: add support for AudioFire2 quirk
  ALSA: hda - Fix the headset mic that will not work on Dell desktop machine
  ALSA: hda - fix cs4210_spdif_automute()
  ASoC: pcm1681: Fix setting de-emphasis sampling rate selection
  ASoC: ssm4567: Keep TDM_BCLKS in ssm4567_set_dai_fmt
  ASoC: sgtl5000: Fix up define for SGTL5000_SMALL_POP
  ASoC: dapm: Don't add prefix to widget stream name
  ASoC: rt5645: Check if codec is initialized in workqueue handler
  ASoC: Intel: Get correct usage_count value to load firmware
  ASoC: topology: Fix to add dapm mixer info
  ASoC: zx: spdif: Fix devm_ioremap_resource return value check
  ASoC: zx: i2s: Fix devm_ioremap_resource return value check
  ASoC: mediatek: Use platform_of_node for machine drivers
  ASoC: Free card DAPM context on snd_soc_instantiate_card() error path
  ...
2015-07-31 17:00:25 -07:00
H Hartley Sweeten
40c3ef9d2f staging: comedi: das1800: add missing break in switch
Commit 06ad6bd8 "staging: comedi: das1800: cleanup das1800_probe()"

Accidently removed the 'break' statement for case 0x8 of the switch.
Add it back.

Reported-by: coverity (CID 1309550)
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-07-31 16:59:47 -07:00
Mateusz Kulikowski
948fa942dc staging: rtl8192e: probe: iounmap mmio when probe fails
In case of probe failure, io memory was not released properly.

Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-07-31 16:21:37 -07:00