Commit graph

574342 commits

Author SHA1 Message Date
Samuel Thibault
8d9b39c649 Staging: speakup: Fix allyesconfig build on mn10300
mn10300 uses an mmio-driven uart. This is not supported by speakup, so
prevent from enabling it.

Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-01 13:05:44 -08:00
Olof Johansson
aa5306a370 vexpress fixes for v4.5
Couple of minor fixes for vexpress platforms:
 1. Add missing of_node_put in vexpress config bus
 2. Add missing DMA-330 abort interrupt on Juno platforms
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Merge tag 'vexpress-for-v4.5/fixes-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux into fixes

vexpress fixes for v4.5

Couple of minor fixes for vexpress platforms:
1. Add missing of_node_put in vexpress config bus
2. Add missing DMA-330 abort interrupt on Juno platforms

* tag 'vexpress-for-v4.5/fixes-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux:
  arm64: dts: Add missing DMA Abort interrupt to Juno
  bus: vexpress-config: Add missing of_node_put

Signed-off-by: Olof Johansson <olof@lixom.net>
2016-02-01 12:27:18 -08:00
Olof Johansson
6c388927a7 mvebu fixes for 4.5 (part 1)
- Fix dts on buffalo linksations machines (gpios and leds)
 - Fix dts partition node according to new binding introduced in v4.5
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Merge tag 'mvebu-fixes-4.5-1' of git://git.infradead.org/linux-mvebu into fixes

mvebu fixes for 4.5 (part 1)

- Fix dts on buffalo linksations machines (gpios and leds)
- Fix dts partition node according to new binding introduced in v4.5

* tag 'mvebu-fixes-4.5-1' of git://git.infradead.org/linux-mvebu:
  ARM: dts: orion5x: gpio pin fixes for linkstation lswtgl
  ARM: dts: kirkwood: gpio-leds fixes for linkstation ls-wvl/vl
  ARM: dts: kirkwood: gpio-leds fixes for linkstation ls-wxl/wsxl
  ARM: dts: kirkwood: gpio pin fixes for linkstation ls-wvl/vl
  ARM: dts: kirkwood: gpio pin fixes for linkstation ls-wxl/wsxl
  ARM: mvebu: ix4-300d: Add compatible property to "partitions" node
  ARM: mvebu: kirkwood: Add compatible property to "partitions" node

Signed-off-by: Olof Johansson <olof@lixom.net>
2016-02-01 12:24:31 -08:00
Olof Johansson
7f7420f07e Fixes for omaps with the most intrusive stuff being read-only data
assembly fixes, the other things are mostly board related:
 
 - A series of omap assembly code fixes to fix issues with rodata with
   ARM_KERNMEM_PERMS enabled. We had several places writing to rodata,
   which is bad. The fix in most cases is to load the value from data
   section using a pointer. Let's also enable ARM_KERNMEM_PERMS so
   DEBUG_RODATA gets selected by default. And while testing things,
   I also added few more loadable driver modules to the defconfig that
   I seem to need quite often.
 
 - Fix a long standing omap5 RTC mystery and enable RTC where we need
   to ensure the SoC msecure pin is high so we can write to the RTC
   registers.
 
 - Fix irq types for am437x
 
 - A series of minor dts fixes for sbc-am57x and cl-som-am57x
 
 - Fixes for torpedo dts to make WLAN behave and to remove a duplicate
   i2c rate entry
 
 This series also includes few minor changes that are not stricly
 fixes, but would be good to get in during the early -rc cycle:
 
 - Remove legacy mailbox platform data that is no longer needed
 
 - Add the pdata-quirks needed for the new pwm-omap-dmtimer so
   people can use it
 
 - Enable ti,mbox-send-noirq that's needed by wkup_m3 driver
 
 - Enable SPLIT and DWARF4 in omap2plus_defconfig as it makes the
   initramfs quite a bit smaller
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Merge tag 'omap-for-v4.5/fixes-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes

Fixes for omaps with the most intrusive stuff being read-only data
assembly fixes, the other things are mostly board related:

- A series of omap assembly code fixes to fix issues with rodata with
  ARM_KERNMEM_PERMS enabled. We had several places writing to rodata,
  which is bad. The fix in most cases is to load the value from data
  section using a pointer. Let's also enable ARM_KERNMEM_PERMS so
  DEBUG_RODATA gets selected by default. And while testing things,
  I also added few more loadable driver modules to the defconfig that
  I seem to need quite often.

- Fix a long standing omap5 RTC mystery and enable RTC where we need
  to ensure the SoC msecure pin is high so we can write to the RTC
  registers.

- Fix irq types for am437x

- A series of minor dts fixes for sbc-am57x and cl-som-am57x

- Fixes for torpedo dts to make WLAN behave and to remove a duplicate
  i2c rate entry

This series also includes few minor changes that are not stricly
fixes, but would be good to get in during the early -rc cycle:

- Remove legacy mailbox platform data that is no longer needed

- Add the pdata-quirks needed for the new pwm-omap-dmtimer so
  people can use it

- Enable ti,mbox-send-noirq that's needed by wkup_m3 driver

- Enable SPLIT and DWARF4 in omap2plus_defconfig as it makes the
  initramfs quite a bit smaller

* tag 'omap-for-v4.5/fixes-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: (23 commits)
  ARM: dts: am57xx: sbc-am57x: correct Eth PHY settings
  ARM: dts: am57xx: cl-som-am57x: fix CPSW EMAC pinmux
  ARM: dts: am57xx: sbc-am57x: fix UART3 pinmux
  ARM: dts: am57xx: cl-som-am57x: update SPI Flash frequency
  ARM: dts: am57xx: cl-som-am57x: set HOST mode for USB2
  ARM: dts: am57xx: sbc-am57x: fix SB-SOM EEPROM I2C address
  ARM: dts: LogicPD Torpedo: Revert Duplicative Entries
  ARM: dts: am437x: pixcir_tangoc: use correct flags for irq types
  ARM: dts: am4372: fix irq type for arm twd and global timer
  ARM: dts: Fix wl12xx missing clocks that cause hangs
  ARM: OMAP: Add PWM dmtimer platform data quirks
  ARM: omap2plus_defconfig: Enable ARM_KERNMEM_PERMS and few loadable modules
  ARM: OMAP2+: Fix ppa_zero_params and ppa_por_params for rodata
  ARM: OMAP2+: Fix l2_inv_api_params for rodata
  ARM: OMAP2+: Fix save_secure_ram_context for rodata
  ARM: OMAP2+: Fix l2dis_3630 for rodata
  ARM: OMAP2+: Fix wait_dll_lock_timed for rodata
  ARM: OMAP2+: Remove legacy mailbox device instantiation
  ARM: dts: AM4372: Add ti,mbox-send-noirq to wkup_m3 mailbox
  ARM: dts: AM33xx: Add ti,mbox-send-noirq to wkup_m3 mailbox
  ...

Signed-off-by: Olof Johansson <olof@lixom.net>
2016-02-01 12:22:52 -08:00
Olof Johansson
b83132f762 First fixes for 4.5. Only DT changes:
- sama5d4: error in DBGU index
 - addition of phy properties in several boards
 - at91sam9n12ek fix a panel compatible string
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Merge tag 'at91-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nferre/linux-at91 into fixes

First fixes for 4.5. Only DT changes:
- sama5d4: error in DBGU index
- addition of phy properties in several boards
- at91sam9n12ek fix a panel compatible string

* tag 'at91-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nferre/linux-at91:
  ARM: dts: at91: sama5d4 xplained: fix phy0 IRQ type
  ARM: dts: at91: sama5d4 xplained: properly mux phy interrupt
  ARM: dts: at91: sama5d4ek: add phy address and IRQ for macb0
  ARM: dts: at91: sama5d2 xplained: add phy address and IRQ for macb0
  ARM: dts: at91: at91sam9n12ek: fix panel compatible string
  ARM: dts: at91: sama5d4: fix instance id of DBGU

Signed-off-by: Olof Johansson <olof@lixom.net>
2016-02-01 12:21:15 -08:00
Jon Hunter
43acf83166 ARM64: tegra: Add chosen node for tegra132 norrin
The NVIDIA bootloader, nvtboot, expects the "chosen" node to be present
in the device-tree blob and if it is not then it fails to boot the kernel.
Add the chosen node so we can boot the kernel on Tegra132 Norrin with the
nvtboot bootloader.

Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2016-02-01 12:20:11 -08:00
Masahiro Yamada
c65cd255e4 ARM: realview: use "depends on" instead of "if" after prompt
This platform recently moved to multi-platform, so missed the global
fixup by commit e324654294 ("ARM: use "depends on" for SoC configs
instead of "if" after prompt").  Fix it now.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2016-02-01 12:19:10 -08:00
Masahiro Yamada
990591ee39 ARM: tango: use "depends on" instead of "if" after prompt
This platform was recently added, so missed the global fixup by
commit e324654294 ("ARM: use "depends on" for SoC configs instead
of "if" after prompt").  Fix it now.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Marc Gonzalez <marc_gonzalez@sigmadesigns.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2016-02-01 12:18:49 -08:00
Masahiro Yamada
c38ac80eb4 ARM: tango: use const and __initconst for smp_operations
This newly added code missed the global fixup by commit 75305275a7
("ARM: use const and __initconst for smp_operations").  So fix it now.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Marc Gonzalez <marc_gonzalez@sigmadesigns.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2016-02-01 12:18:23 -08:00
Masahiro Yamada
567fdd9d91 ARM: realview: use const and __initconst for smp_operations
This newly added code missed the global fixup by commit 75305275a7
("ARM: use const and __initconst for smp_operations").  So fix it now.

Also, add missing "static" qualifier.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2016-02-01 12:17:30 -08:00
Masahiro Yamada
047a555f95 bus: uniphier-system-bus: revive tristate prompt
At first, commit 4b7f48d395 ("bus: uniphier-system-bus: add UniPhier
System Bus driver") introduced this driver as a tristate one.

Then, commit 326ea45aa8 ("bus: uniphier: allow only built-in
driver") temporarily made it boolean in order to fix a link error
in case it is compiled as a module.

The root cause was fixed by commit b80443c221 ("of/platform: export
of_default_bus_match_table").

Now this driver can really be a module.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2016-02-01 12:17:16 -08:00
Abhilash Jindal
17a2f46c3d iio: dht11: Use boottime
Wall time obtained from ktime_get_real_ns is susceptible to sudden jumps due to
user setting the time or due to NTP.  Boot time is constantly increasing time
better suited for comparing two timestamps.

Signed-off-by: Abhilash Jindal <klock.android@gmail.com>
Reviewed-by: Harald Geyer <harald@ccbib.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-02-01 20:16:13 +00:00
Abhilash Jindal
6b3f99989e [media] dvb-frontend: Use boottime
Wall time obtained from ktime_get_real is susceptible to sudden jumps due to
user setting the time or due to NTP.  Boot time is constantly increasing time
better suited for comparing two timestamps.

[mchehab@osg.samsung.com: fix trivial merge conflicts]
Signed-off-by: Abhilash Jindal <klock.android@gmail.com>

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-01 13:35:29 -02:00
Shuah Khan
3801bc7d1b [media] media: Media Controller fix to not let stream_count go negative
Change media_entity_pipeline_stop() to not decrement
stream_count of an inactive media pipeline. Doing so,
results in preventing starting the pipeline.

Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-01 13:32:50 -02:00
Shuah Khan
d40ec6fdb0 [media] media: Fix media_open() to clear filp->private_data in error leg
Fix media_open() to clear filp->private_data when file open
fails.

Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-01 13:21:33 -02:00
Javier Martinez Canillas
329d88da4d [media] media: i2c: Don't export ir-kbd-i2c module alias
This is a partial revert of commit ed8d1cf07c ("[media] Export I2C
module alias information in missing drivers") that exported the module
aliases for the I2C drivers that were missing to make autoload to work.

But there is a bug report [0] that auto load of the ir-kbd-i2c driver
cause the Hauppauge HD-PVR driver to not behave correctly.

This is a hdpvr latent bug that was just exposed by ir-kbd-i2c module
autoloading working and will also happen if the I2C driver is built-in
or a user calls modprobe to load the module and register the driver.

But there is a regression experimented by users so until the real bug
is fixed, let's not export the module alias for the ir-kbd-i2c driver
even when this just masks the actual issue.

[0]: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=810726

Fixes: ed8d1cf07c ("[media] Export I2C module alias information in missing drivers")

Cc: <stable@vger.kernel.org> # 4.3+
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
2016-02-01 13:19:31 -02:00
Arnd Bergmann
7c8fe516bd [media] v4l: remove MEDIA_TUNER dependency for VIDEO_TUNER
em28xx selects VIDEO_TUNER, which has a dependency on MEDIA_TUNER,
so we get a Kconfig warning if that is disabled:

warning: (VIDEO_PVRUSB2 && VIDEO_USBVISION && VIDEO_GO7007 && VIDEO_AU0828_V4L2 && VIDEO_CX231XX && VIDEO_TM6000 && VIDEO_EM28XX && VIDEO_IVTV && VIDEO_MXB && VIDEO_CX18 && VIDEO_CX23885 && VIDEO_CX88 && VIDEO_BT848 && VIDEO_SAA7134 && VIDEO_SAA7164) selects VIDEO_TUNER which has unmet direct dependencies (MEDIA_SUPPORT && MEDIA_TUNER)

VIDEO_TUNER does not actually depend on MEDIA_TUNER, and the
dependency does nothing except cause the above warning, so let's
remove it.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-01 13:16:33 -02:00
Arnd Bergmann
733d0def3e [media] b2c2: flexcop: avoid unused function warnings
The flexcop driver has two functions that are normally used, except
when multiple frontend drivers are disabled:

drivers/media/common/b2c2/flexcop-fe-tuner.c:42:12: warning: 'flexcop_set_voltage' defined but not used [-Wunused-function]
drivers/media/common/b2c2/flexcop-fe-tuner.c:71:12: warning: 'flexcop_sleep' defined but not used [-Wunused-function]

This avoids the build warning by updating the #ifdef for flexcop_set_voltage
to the exact condition under which it is used. For flexcop_sleep, the
condition is rather complex, so I resort to marking it as __maybe_unused,
so the compiler can silently drop it.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-01 13:15:01 -02:00
Arnd Bergmann
b97baa3e22 [media] hdpvr: hide unused variable
The i2c client pointer is only used when CONFIG_I2C is set, and
otherwise produces a compile-time warning:

drivers/media/usb/hdpvr/hdpvr-core.c: In function 'hdpvr_probe':
drivers/media/usb/hdpvr/hdpvr-core.c:276:21: error: unused variable 'client' [-Werror=unused-variable]

This uses the same #ifdef to hide the variable when the code using
it is hidden.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-01 13:14:27 -02:00
Amitoj Kaur Chawla
458a395235 [media] media: platform: exynos4-is: media-dev: Add missing of_node_put
for_each_available_child_of_node and for_each_child_of_node perform an
of_node_get on each iteration, so to break out of the loop an of_node_put is
required.

Found using Coccinelle. The simplified version of the semantic patch
that is used for this is as follows:

// <smpl>
@@
local idexpression n;
expression e,r;
@@

 for_each_available_child_of_node(r,n) {
   ...
(
   of_node_put(n);
|
   e = n
|
+  of_node_put(n);
?  break;
)
   ...
 }
... when != n
// </smpl>

Signed-off-by: Amitoj Kaur Chawla <amitoj1606@gmail.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-01 11:11:52 -02:00
Xiubo Li
0ede1876f7 [media] dvbdev: the space is required after ','
The space is missing after ',', and this will be introduce much
noise when checking new patch around them.

Signed-off-by: Xiubo Li <lixiubo@cmss.chinamobile.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-01 10:25:59 -02:00
Xiubo Li
5c3fbc5e03 [media] dvbdev: replace kcalloc with kzalloc
Since the number of elements equals to 1, so just use kzalloc to
simplify the code and make it more readable.

Signed-off-by: Xiubo Li <lixiubo@cmss.chinamobile.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-01 10:25:16 -02:00
Xiubo Li
eac287adb3 [media] dvbdev: remove useless parentheses after return
The parentheses are not required after return, and just remove it.

Signed-off-by: Xiubo Li <lixiubo@cmss.chinamobile.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-01 10:24:44 -02:00
Hans de Goede
7445e45d19 [media] pwc: Add USB id for Philips Spc880nc webcam
SPC 880NC PC camera discussions:
	http://www.pclinuxos.com/forum/index.php/topic,135688.0.html

Cc: stable@vger.kernel.org
Reported-by: Kikim <klucznik0@op.pl>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-01 10:21:10 -02:00
Arnd Bergmann
c89f8d47a1 [media] s5c73m3: remove duplicate module device table
Clang complains about an extraneous definition of the module
device table after the patch to add it was accidentally merged
twice:

../drivers/media/i2c/s5c73m3/s5c73m3-spi.c:40:1: error: redefinition of
      '__mod_of__s5c73m3_spi_ids_device_table'
MODULE_DEVICE_TABLE(of, s5c73m3_spi_ids);
^
../include/linux/module.h:223:27: note: expanded from macro 'MODULE_DEVICE_TABLE'
extern const typeof(name) __mod_##type##__##name##_device_table         \
                          ^
<scratch space>:99:1: note: expanded from here
__mod_of__s5c73m3_spi_ids_device_table

This removes the second definition.

Fixes: f934a94bb5 ("[media] s5c73m3: Export OF module alias information")

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-01 10:13:19 -02:00
Javier Martinez Canillas
c517b35211 [media] omap3isp: Check v4l2_of_parse_endpoint() return value
The v4l2_of_parse_endpoint() function can fail so check the return value.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-01 10:04:17 -02:00
Javier Martinez Canillas
234eab8407 [media] exynos4-is: Check v4l2_of_parse_endpoint() return value
The v4l2_of_parse_endpoint() function can fail so check the return value.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-01 10:03:59 -02:00
Javier Martinez Canillas
baf40b5f79 [media] tvp7002: Check v4l2_of_parse_endpoint() return value
The v4l2_of_parse_endpoint() function can fail so check the return value.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-01 10:03:33 -02:00
Javier Martinez Canillas
fe1e6ac614 [media] tvp514x: Check v4l2_of_parse_endpoint() return value
The v4l2_of_parse_endpoint() function can fail so check the return value.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-01 10:03:09 -02:00
Javier Martinez Canillas
2388309c74 [media] s5k5baf: Check v4l2_of_parse_endpoint() return value
The v4l2_of_parse_endpoint() function can fail so check the return value.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-01 10:02:40 -02:00
Javier Martinez Canillas
fda8b13ddc [media] s5c73m3: Check v4l2_of_parse_endpoint() return value
The v4l2_of_parse_endpoint() function can fail so check the return value.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-01 10:02:17 -02:00
Javier Martinez Canillas
7f6cd6c40d [media] adv7604: Check v4l2_of_parse_endpoint() return value
The v4l2_of_parse_endpoint() function can fail so check the return value.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-01 10:01:55 -02:00
Javier Martinez Canillas
f7842cfd3c [media] v4l: of: Correct v4l2_of_parse_endpoint() kernel-doc
The v4l2_of_parse_endpoint function kernel-doc says that the return value
is always 0. But that is not true since the function can fail and a error
negative code is returned on failure. So correct the kernel-doc to match.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-01 10:01:22 -02:00
Laurent Pinchart
8aeec38f9c [media] v4l: Merge the YUV and YVU 4:2:0 tri-planar non-contiguous formats docs
The two formats are very similar, having two separate pages to describe
them is overkill.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-01 09:49:35 -02:00
Simon Horman
417b552331 [media] rcar_jpu: Add R-Car Gen2 Fallback Compatibility String
Add fallback compatibility string.
This is in keeping with the fallback scheme being adopted wherever
appropriate for drivers for Renesas SoCs.

Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-01 09:48:19 -02:00
Christophe JAILLET
df47512d59 [media] netup_unidvb: Remove a useless memset
This memory is allocated using kzalloc so there is no need to call
memset(..., 0, ...)

[mchehab@osg.samsung.com: as suggested by Joe Perches,
 It's unusual to not see the alloc above the if, removed a
 blank line between kzalloc/if and added a blank line after if]
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-01 09:45:31 -02:00
Ernst Martin Witte
41ff9142df [media] ts2020: cancel_delayed_work_sync before device removal / kfree
ts2020_remove  was  calling  kfree(dev)  with  possibly  still  active
schedule_delayed_work(dev->stat_work).  A similar bug in si2157 caused
kernel panics in call_timer_fn e.g. after rmmod cx23885.

Signed-off-by: Ernst Martin Witte <emw-linux-kernel@nocabal.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-01 09:42:30 -02:00
Ernst Martin Witte
4fd57ed615 [media] rtl2830: cancel_delayed_work_sync before device removal / kfree
rtl2830_remove  was  calling  kfree(dev) with  possibly  still  active
schedule_delayed_work(&dev->stat_work).   A  similar   bug  in  si2157
caused kernel panics in call_timer_fn e.g. after rmmod cx23885.

Signed-off-by: Ernst Martin Witte <emw-linux-kernel@nocabal.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-01 09:42:03 -02:00
Ernst Martin Witte
01d1d714e2 [media] si2157: cancel_delayed_work_sync before device removal / kfree
si2157_remove  was  calling  kfree(dev)  with  possibly  still  active
schedule_delayed_work(dev->stat_work).  This  caused kernel  panics in
call_timer_fn e.g. after rmmod cx23885.

Signed-off-by: Ernst Martin Witte <emw-linux-kernel@nocabal.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-01 09:41:38 -02:00
Ernst Martin Witte
4bdcaa054e [media] af9033: cancel_delayed_work_sync before device removal / kfree
af9033_remove  was  calling  kfree(dev)  with  possibly  still  active
schedule_delayed_work(&dev->stat_work).   A  similar   bug  in  si2157
caused kernel panics in call_timer_fn e.g. after rmmod cx23885.

Signed-off-by: Ernst Martin Witte <emw-linux-kernel@nocabal.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-01 09:40:56 -02:00
Ernst Martin Witte
631c694f7d [media] af9013: cancel_delayed_work_sync before device removal / kfree
af9013_remove  was calling  kfree(state)  with  possibly still  active
schedule_delayed_work(&state->statistics_work).   A   similar  bug  in
si2157 caused kernel panics in call_timer_fn e.g. after rmmod cx23885.

Signed-off-by: Ernst Martin Witte <emw-linux-kernel@nocabal.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-01 09:40:18 -02:00
Takashi Iwai
f784beb75c ALSA: timer: Fix link corruption due to double start or stop
Although ALSA timer code got hardening for races, it still causes
use-after-free error.  This is however rather a corrupted linked list,
not actually the concurrent accesses.  Namely, when timer start is
triggered twice, list_add_tail() is called twice, too.  This ends
up with the link corruption and triggers KASAN error.

The simplest fix would be replacing list_add_tail() with
list_move_tail(), but fundamentally it's the problem that we don't
check the double start/stop correctly.  So, the right fix here is to
add the proper checks to snd_timer_start() and snd_timer_stop() (and
their variants).

BugLink: http://lkml.kernel.org/r/CACT4Y+ZyPRoMQjmawbvmCEDrkBD2BQuH7R09=eOkf5ESK8kJAw@mail.gmail.com
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-02-01 12:23:29 +01:00
Takashi Iwai
2cdc7b636d ALSA: seq: Fix yet another races among ALSA timer accesses
ALSA sequencer may open/close and control ALSA timer instance
dynamically either via sequencer events or direct ioctls.  These are
done mostly asynchronously, and it may call still some timer action
like snd_timer_start() while another is calling snd_timer_close().
Since the instance gets removed by snd_timer_close(), it may lead to
a use-after-free.

This patch tries to address such a race by protecting each
snd_timer_*() call via the existing spinlock and also by avoiding the
access to timer during close call.

BugLink: http://lkml.kernel.org/r/CACT4Y+Z6RzW5MBr-HUdV-8zwg71WQfKTdPpYGvOeS7v4cyurNQ@mail.gmail.com
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-02-01 12:23:29 +01:00
Takashi Iwai
b248371628 ALSA: pcm: Fix potential deadlock in OSS emulation
There are potential deadlocks in PCM OSS emulation code while
accessing read/write and mmap concurrently.  This comes from the
infamous mmap_sem usage in copy_from/to_user().  Namely,

   snd_pcm_oss_write() ->
     &runtime->oss.params_lock ->
        copy_to_user() ->
          &mm->mmap_sem
  mmap() ->
    &mm->mmap_sem ->
      snd_pcm_oss_mmap() ->
        &runtime->oss.params_lock

Since we can't avoid taking params_lock from mmap code path, use
trylock variant and aborts with -EAGAIN as a workaround of this AB/BA
deadlock.

BugLink: http://lkml.kernel.org/r/CACT4Y+bVrBKDG0G2_AcUgUQa+X91VKTeS4v+wN7BSHwHtqn3kQ@mail.gmail.com
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-02-01 12:23:29 +01:00
Takashi Iwai
cc85f7a634 ALSA: rawmidi: Remove kernel WARNING for NULL user-space buffer check
NULL user-space buffer can be passed even in a normal path, thus it's
not good to spew a kernel warning with stack trace at each time.
Just drop snd_BUG_ON() macro usage there.

BugLink: http://lkml.kernel.org/r/CACT4Y+YfVJ3L+q0i-4vyQVyyPD7V=OMX0PWPi29x9Bo3QaBLdw@mail.gmail.com
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-02-01 12:22:59 +01:00
Takashi Iwai
2d1b5c0836 ALSA: seq: Fix race at closing in virmidi driver
The virmidi driver has an open race at closing its assigned rawmidi
device, and this may lead to use-after-free in
snd_seq_deliver_single_event().

Plug the hole by properly protecting the linked list deletion and
calling in the right order in snd_virmidi_input_close().

BugLink: http://lkml.kernel.org/r/CACT4Y+Zd66+w12fNN85-425cVQT=K23kWbhnCEcMB8s3us-Frw@mail.gmail.com
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Tested-by: Dmitry Vyukov <dvyukov@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-02-01 12:21:46 +01:00
Antti Palosaari
4c7cad4bbf [media] rtl28xxu: retry failed i2c messages
Sometimes i2c transfer fails. That happens especially when large
amount of data is written sequentially eg. firmware download.
Problem arises with both integrated rtl2832 demod and external
mn88472 demod, which is clear indicator it is busy i2c bus issue.
Use i2c core retry logic in order fix the issue by repeating failed
message. Another solution which also works is to add ~100us delay
between i2c messages - but repeating sounds more elegant and does
not cause any extra delay for success cases.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-01 09:20:24 -02:00
Torbjörn Jansson
d309c8bb70 [media] dvb-usb-dvbsky: add new product id for TT CT2-4650 CI
Add a new product id to dvb-usb-dvbsky for new version of TechnoTrend CT2-4650 CI

Signed-off-by: Torbjörn Jansson <torbjorn.jansson@mbox200.swipnet.se>
Reviewed-by: Olli Salonen <olli.salonen@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-01 09:06:10 -02:00
Stefan Pöschel
b8278f8b96 [media] af9035: add support for 2nd tuner of MSI DigiVox Diversity
PIP tested with VLC. Diversity tested with the Windows driver.

Signed-off-by: Stefan Pöschel <basic.master@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-01 09:04:06 -02:00
Philipp Zabel
93b66420a4 [media] dw2102: Add support for Terratec Cinergy S2 USB BOX
The Terratec Cinergy S2 USB BOX uses a Montage M88TS2022 tuner
and a M88DS3103 demodulator, same as Technotrend TT-connect S2-4600.
This patch adds the missing USB Product ID to make it work.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-01 09:01:34 -02:00