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737148 commits

Author SHA1 Message Date
Aaron Armstrong Skomra
791ae27373 HID: wacom: EKR: ensure devres groups at higher indexes are released
Background: ExpressKey Remotes communicate their events via usb dongle.
Each dongle can hold up to 5 pairings at one time and one EKR (identified
by its serial number) can unfortunately be paired with its dongle
more than once. The pairing takes place in a round-robin fashion.

Input devices are only created once per EKR, when a new serial number
is seen in the list of pairings. However, if a device is created for
a "higher" paring index and subsequently a second pairing occurs at a
lower pairing index, unpairing the remote with that serial number from
any pairing index will currently cause a driver crash. This occurs
infrequently, as two remotes are necessary to trigger this bug and most
users have only one remote.

As an illustration, to trigger the bug you need to have two remotes,
and pair them in this order:

1. slot 0 -> remote 1 (input device created for remote 1)
2. slot 1 -> remote 1 (duplicate pairing - no device created)
3. slot 2 -> remote 1 (duplicate pairing - no device created)
4. slot 3 -> remote 1 (duplicate pairing - no device created)
5. slot 4 -> remote 2 (input device created for remote 2)

6. slot 0 -> remote 2 (1 destroyed and recreated at slot 1)
7. slot 1 -> remote 2 (1 destroyed and recreated at slot 2)
8. slot 2 -> remote 2 (1 destroyed and recreated at slot 3)
9. slot 3 -> remote 2 (1 destroyed and not recreated)
10. slot 4 -> remote 2 (2 was already in this slot so no changes)

11. slot 0 -> remote 1 (The current code sees remote 2 was paired over in
                        one of the dongle slots it occupied and attempts
                        to remove all information about remote 2 [1]. It
                        calls wacom_remote_destroy_one for remote 2, but
                        the destroy function assumes the lowest index is
                        where the remote's input device was created. The
                        code "cleans up" the other remote 2 pairings
                        including the one which the input device was based
                        on, assuming they were were just duplicate
                        pairings. However, the cleanup doesn't call the
                        devres release function for the input device that
                        was created in slot 4).

This issue is fixed by this commit.

[1] Remote 2 should subsequently be re-created on the next packet from the
EKR at the lowest numbered slot that it occupies (here slot 1).

Fixes: f9036bd436 ("HID: wacom: EKR: use devres groups to manage resources")
Cc: stable <stable@vger.kernel.org> #4.9
Signed-off-by: Aaron Armstrong Skomra <aaron.skomra@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2018-01-23 15:30:23 +01:00
Andrew Duggan
c5293409e1 HID: rmi: Support the Fujitsu R726 Pad dock using hid-rmi
The Fujitsu R726 Pad has an optional USB keyboard dock which contains
a Synaptics touchpad. The dock identifies itself as a
Primax Rezel Tablet Keyboard.

Signed-off-by: Andrew Duggan <aduggan@synaptics.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2018-01-23 15:20:40 +01:00
Linus Walleij
d58f2bf261 gpio: Timestamp events in hardirq handler
Add a hardirq handler to the GPIO userspace event loop, making
sure to pick up the timestamp there, as close as possible in time
relative to the actual event causing the interrupt.

Tested with a simple pushbutton GPIO on ux500 and seems to work
fine.

Cc: Bartosz Golaszewski <brgl@bgdev.pl>
Reviewed-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Reported-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-01-23 14:43:57 +01:00
Linus Walleij
24bd3efc9d gpio: Fix kernel stack leak to userspace
The GPIO event descriptor was leaking kernel stack to
userspace because we don't zero the variable before
use. Ooops. Fix this.

Cc: stable@vger.kernel.org
Reported-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Bartosz Golaszewski <brgl@bgdev.pl>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-01-23 14:43:45 +01:00
Arnd Bergmann
4852fdca88 media: i2c: ov7740: use gpio/consumer.h instead of gpio.h
When built on a platform without gpiolib support, we run into
a couple of compile errors in ov7740, including:

drivers/media/i2c/ov7740.c: In function 'ov7740_set_power':
drivers/media/i2c/ov7740.c:307:4: error: implicit declaration of function 'gpiod_direction_output'; did you mean 'gpio_direction_output'? [-Werror=implicit-function-declaration]
    gpiod_direction_output(ov7740->pwdn_gpio, 0);
drivers/media/i2c/ov7740.c:914:4: error: 'GPIOD_OUT_HIGH' undeclared (first use in this function); did you mean 'GPIOF_INIT_HIGH'?

Changing it to use the correct header file solves the problem.

Fixes: 39c5c4471b ("media: i2c: Add the ov7740 image sensor driver")

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-01-23 08:13:02 -05:00
Sakari Ailus
3580112b6d media: entity: Add a nop variant of media_entity_cleanup
Add nop variant of media_entity_cleanup. This allows calling
media_entity_cleanup whether or not Media controller is enabled,
simplifying driver code.

Also drop #ifdefs on a few drivers around media_entity_cleanup().

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-01-23 08:12:01 -05:00
Hugues Fruchet
6146fde355 media: ov5640: fix spurious streamon failures
Time to time, stream on is failing with a strange positive error.
Error code is returned erroneously by ov5640_set_ctrl_exposure()
due to ov5640_get_vts() return value wrongly treated as error.
Fix this by forcing ret to 0 after ov5640_get_vts() success call,
in order that ret is set to success for rest of code sequence.

Signed-off-by: Hugues Fruchet <hugues.fruchet@st.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-01-23 08:10:31 -05:00
Yong Zhi
401f69308f media: intel-ipu3: cio2: fixup off-by-one bug in cio2_vb2_buf_init
With "pages" initialized to vb length + 1 pages, the condition
check if(!pages--) will break at one more page than intended,
this can result in out-of-bound access to b->lop[i][j] when setting
the last dummy page.

Fixes: c7cbef1fdb ("media: intel-ipu3: cio2: fix a crash with out-of-bounds access")

Signed-off-by: Yong Zhi <yong.zhi@intel.com>
Signed-off-by: Cao Bing Bu <bingbu.cao@intel.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-01-23 08:08:44 -05:00
Arnd Bergmann
5eb8c768f4 media: intel-ipu3: cio2: mark more PM functions as __maybe_unused
My earlier patch missed two functions, these must be __maybe_unused
as well:

drivers/media/pci/intel/ipu3/ipu3-cio2.c:1867:12: error: 'cio2_runtime_resume' defined but not used [-Werror=unused-function]
drivers/media/pci/intel/ipu3/ipu3-cio2.c:1849:12: error: 'cio2_runtime_suspend' defined but not used [-Werror=unused-function]

Fixes: 2086dd3570 ("media: intel-ipu3: cio2: mark PM functions as __maybe_unused")

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-01-23 08:07:29 -05:00
Hans Verkuil
7952be9b6e media: drivers/media/common/videobuf2: rename from videobuf
This directory contains the videobuf2 framework, so name the
directory accordingly.

The name 'videobuf' typically refers to the old and deprecated
videobuf version 1 framework so that was confusing.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-01-23 08:05:02 -05:00
Arnd Bergmann
c81ceb58e1 media: cobalt: select CONFIG_SND_PCM
The cobalt sound driver has a dependency on ALSA, but not
on the PCM helper code, so this can lead to an extremely
rare link error in randconfig builds:

ERROR: "snd_pcm_period_elapsed" [drivers/media/pci/cobalt/cobalt.ko] undefined!
ERROR: "_snd_pcm_stream_lock_irqsave" [drivers/media/pci/cobalt/cobalt.ko] undefined!
ERROR: "snd_pcm_hw_constraint_integer" [drivers/media/pci/cobalt/cobalt.ko] undefined!
ERROR: "snd_pcm_set_ops" [drivers/media/pci/cobalt/cobalt.ko] undefined!
ERROR: "snd_pcm_stream_unlock_irqrestore" [drivers/media/pci/cobalt/cobalt.ko] undefined!
ERROR: "snd_pcm_lib_ioctl" [drivers/media/pci/cobalt/cobalt.ko] undefined!
ERROR: "snd_pcm_new" [drivers/media/pci/cobalt/cobalt.ko] undefined!

The other audio drivers select 'SND_PCM' for this, so let's
do the same.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-01-23 08:05:01 -05:00
Arnd Bergmann
097ca90dd1 media: staging: tegra-vde: select DMA_SHARED_BUFFER
Without CONFIG_DMA_SHARED_BUFFER we run into a link error for the
dma_buf_* APIs:

ERROR: "dma_buf_map_attachment" [drivers/staging/media/tegra-vde/tegra-vde.ko] undefined!
ERROR: "dma_buf_attach" [drivers/staging/media/tegra-vde/tegra-vde.ko] undefined!
ERROR: "dma_buf_get" [drivers/staging/media/tegra-vde/tegra-vde.ko] undefined!
ERROR: "dma_buf_put" [drivers/staging/media/tegra-vde/tegra-vde.ko] undefined!
ERROR: "dma_buf_detach" [drivers/staging/media/tegra-vde/tegra-vde.ko] undefined!
ERROR: "dma_buf_unmap_attachment" [drivers/staging/media/tegra-vde/tegra-vde.ko] undefined!

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-01-23 08:05:01 -05:00
Hans Verkuil
dac15ed62d media: dt-bindings/media/cec-gpio.txt: mention the CEC/HPD max voltages
Mention the maximum voltages of the CEC and HPD lines. Since in the example
these lines are connected to a Raspberry Pi and the Rpi GPIO lines are 3.3V
it is a good idea to warn against directly connecting the HPD to the Raspberry
Pi's GPIO line.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Cc: <stable@vger.kernel.org>      # for v4.15
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-01-23 08:05:00 -05:00
Mauro Carvalho Chehab
a4a02b6ec3 media: dw9714: annotate a __be16 integer value
As warned:
   drivers/media/i2c/dw9714.c: warning: incorrect type in initializer (different base types):  => 64:19

Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-01-23 08:04:51 -05:00
Hendrik Brueckner
b3fa38963a perf trace: Remove audit-libs dependency if syscall tables are present
Change the Makefile and build process to no longer require audit-libs
interfaces when the architecture provides system call tables.

Committer notes:

Its not enough to hook into the NO_LIBAUDIT makefile block, we need to
define a CONFIG_TRACE that gets selected by both architectures
generating the syscall tables from the kernel headers and from detecting
the availability of libaudit.

With that in place we will not link against libaudit even if the
necessary files are available for that, in fact we will not even try to
detect its availability, speeding up a bit the feature detection phase.

Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Reviewed-by: Thomas Richter <tmricht@linux.vnet.ibm.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: linux-s390@vger.kernel.org
LPU-Reference: 1516352177-11106-6-git-send-email-brueckner@linux.vnet.ibm.com
Link: https://lkml.kernel.org/n/tip-j68lub6ipm8apvy52vd3l4cm@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-01-23 09:51:38 -03:00
Hendrik Brueckner
092bd3cd71 perf trace: Obtain errno strings by using arch_syscalls__strerrno()
Replace the errno_to_name() from the audit-libs with the newly
introduced arch_syscalls__strerrno() function.

With this change:

1.  With replacing errno_to_name() from audit-libs, perf trace
    does no longer require audit-lib interfaces.

2. In addition to 1, the audit-libs dependency can be removed
   for architectures that support syscall tables in perf.
   This is achieved in a follow-up commit.

3. With the architecture specific errno number/name mapping,
   perf trace reports can work across architectures.

Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Reviewed-by: Thomas Richter <tmricht@linux.vnet.ibm.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: linux-s390@vger.kernel.org
LPU-Reference: 1516352177-11106-5-git-send-email-brueckner@linux.vnet.ibm.com
Link: https://lkml.kernel.org/n/tip-xjvoqzhwmu4wn4kl9ng11rvs@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-01-23 09:51:38 -03:00
Hendrik Brueckner
0337cf74cc perf util: Introduce architecture specific errno/name mapping
Introduce a script that generates a mapping of errno numbers to their
names for each architecture that is supported by perf (i.e.  has a
subdirectory in tools/perf/arch/).

The errno mapping is generated as part of the trace beautifiers and can
be used by including the trace/beauty/arch_errno_names.c file.  Then,
use arch_syscalls__strerrno() to look up an errno value to obtain the
errno name (e.g. ENOENT) for a particular architecture.

Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Reviewed-by: Thomas Richter <tmricht@linux.vnet.ibm.com>
Suggested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: linux-s390@vger.kernel.org
LPU-Reference: 1516352177-11106-4-git-send-email-brueckner@linux.vnet.ibm.com
Link: https://lkml.kernel.org/n/tip-8zlsjnuoep2ww39aq5z41fno@git.kernel.org
[ Make x86 be the first arch, most common, add newline to last line, fixing build on centos:5 ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-01-23 09:51:37 -03:00
Hendrik Brueckner
28b8f95400 tools include asm-generic: Grab errno.h and errno-base.h
This is a pre-req to generate an architecture specific mapping of errno
numbers to their names.  This errno mapping can be used by perf trace to
support cross-architecture trace reports and to get rid of the
audit-libs dependency.

Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Reviewed-by: Thomas Richter <tmricht@linux.vnet.ibm.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: linux-s390@vger.kernel.org
LPU-Reference: 1516352177-11106-3-git-send-email-brueckner@linux.vnet.ibm.com
Link: https://lkml.kernel.org/n/tip-q13ystrw4sjz4wyvd3654cnm@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-01-23 09:51:37 -03:00
Hendrik Brueckner
95f28190aa tools include arch: Grab a copy of errno.h for arch's supported by perf
For each arch in tools/perf/arch, grab a copy of errno.h.

This is a pre-req to generate an architecture specific mapping of errno
numbers to their names.  This errno mapping can be used by perf trace to
support cross-architecture trace reports and to get rid of the
audit-libs dependency.

Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Reviewed-by: Thomas Richter <tmricht@linux.vnet.ibm.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: linux-s390@vger.kernel.org
LPU-Reference: 1516352177-11106-2-git-send-email-brueckner@linux.vnet.ibm.com
Link: https://lkml.kernel.org/n/tip-73azjhrzpjsskwi129020i2u@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-01-23 09:51:37 -03:00
Jiri Olsa
99402e0683 perf build: Display EXTRA features for VF=1 build
Display the state of the rest of the features (FEATURE_TESTS_EXTRA) on a
'make VF=1' build. These features are detected manually by perf's
Makefile.config so they can't be displayed with the main list, but only
after we're done in Makefile.config.

  $ make VF=1
    BUILD:   Doing 'make -j4' parallel build

  Auto-detecting system features:
  ...                         dwarf: [ on  ]
  ...            dwarf_getlocations: [ on  ]
  ...                         glibc: [ on  ]
  ...                          gtk2: [ on  ]

SNIP

  ...                       timerfd: [ on  ]
  ...                  sched_getcpu: [ on  ]
  ...                           sdt: [ on  ]
  ...                         setns: [ on  ]

extra features:
  ...                        bionic: [ OFF ]
  ...                    compile-32: [ on  ]
  ...                   compile-x32: [ OFF ]
  ...                cplus-demangle: [ on  ]
  ...                         hello: [ OFF ]
  ...                 libbabeltrace: [ on  ]
  ...                       liberty: [ on  ]
  ...                     liberty-z: [ on  ]
  ...         libunwind-debug-frame: [ OFF ]
  ...     libunwind-debug-frame-arm: [ OFF ]
  ... libunwind-debug-frame-aarch64: [ OFF ]

SNIP

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20180109092646.GB11520@krava
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-01-23 09:51:36 -03:00
Mathieu Poirier
631e8f0a97 perf report: Fix regression when decoding intel_pt traces
Commit (93d10af26b perf tools: Optimize sample parsing for ordered
events) breaks intelPT trace decoding by invariably returning an error
if the event type isn't a PERF_SAMPLE_TIME.

With this patch the timestamp is initialised and processing is allowed
to continue if the error returned by function
perf_evlist__parse_sample_timestamp() is not a fault.

Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Fixes: 93d10af26b ("perf tools: Optimize sample parsing for ordered events")
Link: http://lkml.kernel.org/r/1515616312-27645-1-git-send-email-mathieu.poirier@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-01-23 09:51:36 -03:00
Wang YanQing
4c0d8d2795 perf symbols: Using O_CLOEXEC in do_open
I've meet a strange behavior with these commands on my gentoo box:

1: perf kmem record
2: CTRL-C to stop 1
3: perf report
4: "Enter", "Enter", "Run scripts for all samples",
   "event_analyzing_sample".

Then 'perf report' says:

  "
  No kallsyms or vmlinux with build-id xxxx was found
  /lib/modules/4.10.0+/build/vmlinux with build id xxxx not found,
  continuing without symbols
  ".

It is strange because I am sure /lib/modules/4.10.0+/build/vmlinux is
right for perf.data.

After digging, I found out the reason is that "perf report" generates
many open fds, then "script_browse" uses popen to run "perf script"
which run out of open files.

The gentoo box has a small default value for "max open files", 1024.
Yes, "ulimit -n " with a bigger number could fix it, but I think that
using O_CLOEXEC in do_open is a better way.

Signed-off-by: Wang YanQing <udknight@gmail.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20180115050448.GA20759@udknight
[ Make sure O_CLOEXEC is available in old systems by adding a patch
  just before this one, to keep this bisectable in such systems ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-01-23 09:49:28 -03:00
Arnaldo Carvalho de Melo
5c61d70e55 perf tools: Move conditional O_CLOEXEC to util.h
To be more generally available and get the build on centos:5 to
work after we use O_CLOEXEC in the next patch, in the util/dso.c file.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Cc: Wang YanQing <udknight@gmail.com>
Link: https://lkml.kernel.org/n/tip-vsjbiydh15pfqomxw1kx64ex@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-01-23 09:48:20 -03:00
Sakari Ailus
a69e99723f media: dw9714: Remove client field in driver's struct
The client field in driver's struct is redundant. Remove it.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Tested-by: Rajmohan Mani <rajmohan.mani@intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-01-23 07:44:45 -05:00
Sakari Ailus
fa4293346b media: dw9714: Call pm_runtime_idle() at the end of probe()
Call pm_runtime_idle() at the end of the driver's probe() function to
enable the device to reach low power state once probe() finishes.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Tested-by: Rajmohan Mani <rajmohan.mani@intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-01-23 07:44:01 -05:00
Sean Young
80008ddbed media: rc: do not remove first bit if leader pulse is present
The rc5 protocol does not have a leading pulse or space, but we encode
the first bit using a single leading pulse. For other protocols, the
leading pulse or space does not represent any bit. So, don't remove the
first bit if a leading pulse is present.

Cc: Antti Seppälä <a.seppala@gmail.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-01-23 07:32:38 -05:00
Sean Young
ddf9c1bb3d media: rc: clean up leader pulse/space for manchester encoding
The IR rc6 encoder sends the header using manchester encoding using 0
bits, which causes the following:

UBSAN: Undefined behaviour in drivers/media/rc/rc-ir-raw.c:247:6
shift exponent 4294967295 is too large for 64-bit type 'long long unsigned int'

So, allow the leader code to send a pulse and space and remove the unused
pulse_space_start field.

Cc: Antti Seppälä <a.seppala@gmail.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-01-23 07:26:50 -05:00
Sean Young
e3cd973429 media: lirc: lirc mode ioctls deal with current mode
The ioctl change the current mode or return the current mode; they
do not tell you which modes are possible (use the lirc features
ioctl for that).

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-01-23 07:25:26 -05:00
Sean Young
02d742f4b2 media: lirc: lirc daemon fails to detect raw IR device
Since commit 9b6192589b ("media: lirc: implement scancode sending"),
and commit de142c3241 ("media: lirc: implement reading scancode")
the lirc features ioctl for raw IR devices advertises two modes for
sending and receiving.

The lirc daemon now fails to detect a raw IR device, both for transmit
and receive.

To fix this, do not advertise the scancode mode in the lirc features
for raw IR devices (however do keep it for scancode devices). The mode
can still be used via the LIRC_SET_{REC,SEND}_MODE ioctl.

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-01-23 07:24:01 -05:00
Sean Young
04d0e8de8a media: lirc: add module alias for lirc_dev
Since commit a60d64b15c ("media: lirc: lirc interface should not be
a raw decoder"), there is no lirc_dev module any more. On Ubuntu 16.10,
the /etc/init.d/lirc startup script attempts to load the lirc_dev module.

Since this module does not exist any more, this script fails. Add an alias
so the correct module is loaded.

Fixes: a60d64b15c ("media: lirc: lirc interface should not be a raw decoder")

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-01-23 07:21:55 -05:00
Colin Ian King
8d25e15d94 media: lirc: don't kfree the uninitialized pointer txbuf
The current error exit path if ir_raw_encode_scancode fails is via the
label out_kfree which kfree's an uninitialized pointer txbuf. Fix this
by exiting via a new exit path that does not kfree txbuf.  Also exit
via this new exit path for a failed allocation of txbuf to avoid a
redundant kfree on a NULL pointer (to save a bunch of CPU cycles).

Detected by: CoverityScan, CID#1463070 ("Uninitialized pointer read")

Fixes: f81a8158d4 ("media: lirc: release lock before sleep")

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-01-23 07:20:29 -05:00
Janosch Frank
c0b4bd2191 s390/mm: Remove superfluous parameter
It seems it hasn't even been used before the last cleanup and was
overlooked.

Signed-off-by: Janosch Frank <frankja@linux.vnet.ibm.com>
Message-Id: <1513169613-13509-12-git-send-email-frankja@linux.vnet.ibm.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2018-01-23 12:38:27 +01:00
Kuninori Morimoto
971da24c48
ASoC: soc-core: snd_soc_rtdcom_lookup() cares component driver name
snd_soc_rtdcom_lookup() look up component by uisng driver name.
Then, it uses component->driver->name.
Some driver might doesn't have it, thus it should care NULL pointer.
This patch solve this issue.

Reported-by: Mukunda,Vijendar <vijendar.mukunda@amd.com>
Reported-by: Manuel Lauss <manuel.lauss@gmail.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Tested-by: Mukunda,Vijendar <vijendar.mukunda@amd.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-01-23 11:17:56 +00:00
Colin Ian King
d8bc23d3ba staging: comedi: dt2811: remove redundant initialization of 'ns'
Variable ns is being initialized with a value that is never read, ns
is being re-assigned a new value later on. Remove the redundant
initialization.

Cleans up clang warning:
drivers/staging/comedi/drivers/dt2811.c:310:21: warning: Value stored
to 'ns' during its initialization is never read

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-01-23 11:51:12 +01:00
Ajay Singh
387fbf0077 staging: wilc1000: fix alignments to match open parenthesis
Fix "Alignment should match open parenthesis" issues reported by
checkpatch.pl script. changes to comply with linux coding style.

Signed-off-by: Ajay Singh <ajay.kathat@microchip.com>
Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-01-23 11:47:29 +01:00
Ajay Singh
c37d652a06 staging: wilc1000: removed unnecessary defined enums typedef
Fix the "do not add new typedefs" issue found by checkpatch.pl
script

Signed-off-by: Ajay Singh <ajay.kathat@microchip.com>
Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-01-23 11:47:29 +01:00
Ajay Singh
7bf0242a75 staging: wilc1000: remove unnecessary use of parentheses
Fix "Unnecessary parentheses around" issue found by checkpatch.pl
script.Remove the unnecessary parentheses to follow linux coding style.

Signed-off-by: Ajay Singh <ajay.kathat@microchip.com>
Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-01-23 11:47:29 +01:00
Colin Ian King
f93a2b8b16 staging: rtl8192u: remove redundant initialization of 'timeout'
Variable timeout is initialized however this value is never read and
it is reassigned a new value a little later, hence the initialization
is redundant and can be removed.

Cleans up clang warning:
drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c:1728:6: warning:
Value stored to 'timeout' during its initialization is never read

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-01-23 11:42:03 +01:00
Petr Sedlak
0d8e205d7a staging: sm750fb: fix CamelCase for dispSet var
Fix warning reported by checkpatch:

  CHECK: Avoid CamelCase: <dispSet>

By renaming dispSet to disp_set

Signed-off-by: Petr Sedlak <hugosedlak@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-01-23 11:42:03 +01:00
NeilBrown
7d70718de0 staging: lustre: lnet/selftest: fix compile error on UP build
When compiled without CONFIG_SMP, we get a compile error
as ->ctb_parts is not defined.

There is already a function, cfs_cpt_cpumask(), which will get the
cpumask we need, and which handles the UP case by returning a NULL pointer.
So use that and handle NULL.
Also avoid the #ifdef by allocating a cpumask_var and copying
into it, rather than sharing the mask.

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Fixes: 6106c0f824 ("staging: lustre: lnet: convert selftest to use workqueues")
Signed-off-by: NeilBrown <neilb@suse.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-01-23 11:42:03 +01:00
Gustavo A. R. Silva
545d8ae7af xfrm: fix boolean assignment in xfrm_get_type_offload
Assign true or false to boolean variables instead of an integer value.

This issue was detected with the help of Coccinelle.

Fixes: ffdb5211da ("xfrm: Auto-load xfrm offload modules")
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2018-01-23 10:56:36 +01:00
Yossi Kuperman
5efec5c655 xfrm: Fix eth_hdr(skb)->h_proto to reflect inner IP version
IPSec tunnel mode supports encapsulation of IPv4 over IPv6 and vice-versa.

The outer IP header is stripped and the inner IP inherits the original
Ethernet header. Tcpdump fails to properly decode the inner packet in
case that h_proto is different than the inner IP version.

Fix h_proto to reflect the inner IP version.

Signed-off-by: Yossi Kuperman <yossiku@mellanox.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2018-01-23 10:56:36 +01:00
Greg Kroah-Hartman
43618257fc USB: storage: remove old wording about how to submit a change
It's best to just send new updates to the usb-storage quirk table to the
linux-usb@vger.kernel.org mailing list, no need to bother Phil and Alan
or the almost defunct usb-storage list.

Reported-by: Alan Stern <stern@rowland.harvard.edu>
Cc: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
Cc: Phil Dibowitz <phil@ipom.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-01-23 10:22:34 +01:00
Greg Kroah-Hartman
077af794d9 USB: storage: remove invalid URL from drivers
The old URL for usb-storage driver help is long gone.  So remove it from
the comments to not confuse people anymore.

Reported-by: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-01-23 10:22:34 +01:00
Arnd Bergmann
1585defa51 Few omap dts fixes and n9 volume keys update for v4.16 merge window
For now, we need to rely on dts alias for n900 lcd and tvout order
 to prevent occasional blank lcd. And we need to reduce the shut down
 temperature for dra7 for non-cpu thermal cases.
 
 And looks like we're missing the n9 volume key mappings and there is
 active work going happening for n9 at least for postmarketos. So let's
 make sure the keys can be actually used as they are the only buttons
 on n9 in addition to the power key.
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Merge tag 'omap-for-v4.16/dt-pt3-signed' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/dt

Pull "dts fixes for omaps for v4.16 merge window" from Tony Lindgren:

Few omap dts fixes and n9 volume keys update for v4.16 merge window

For now, we need to rely on dts alias for n900 lcd and tvout order
to prevent occasional blank lcd. And we need to reduce the shut down
temperature for dra7 for non-cpu thermal cases.

And looks like we're missing the n9 volume key mappings and there is
active work going happening for n9 at least for postmarketos. So let's
make sure the keys can be actually used as they are the only buttons
on n9 in addition to the power key.

* tag 'omap-for-v4.16/dt-pt3-signed' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: dts: Nokia N9: add support for up/down keys in the dts
  ARM: dts: dra7: Reduce shut down temperature of non-cpu thermal zones
  ARM: dts: n900: Add aliases for lcd and tvout displays
2018-01-23 10:19:46 +01:00
Greg Kroah-Hartman
78fae52cf4 sysfs: remove DEBUG defines
It isn't needed at all in these files, dynamic debug is the best way to
enable this type of thing, if you really want it.  As it is, these
defines were not doing anything at all.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-01-23 10:19:23 +01:00
Greg Kroah-Hartman
619daeeeb8 sysfs: use SPDX identifiers
Move the license "mark" of the sysfs files to be in SPDX form, instead
of the custom text that it currently is in.  This is in a quest to get
rid of the 700+ different ways we say "GPLv2" in the kernel tree.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-01-23 10:19:10 +01:00
Arnd Bergmann
d43aeff392 FSL/NXP SoC drivers updates for 4.16
This adds new SoC support and more error path handling to the guts
 driver.
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Merge tag 'soc-fsl-for-4.16' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/leo/linux into next/drivers

Pull "FSL/NXP SoC drivers updates for 4.16" from Li Yang:

This adds new SoC support and more error path handling to the guts
driver.

* tag 'soc-fsl-for-4.16' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/leo/linux:
  soc: fsl: guts: Add a NULL check for devm_kasprintf()
  soc: fsl: support GUTS driver for ls1012a/ls1046a
2018-01-23 10:17:26 +01:00
Sudeep Holla
e2105ca8be of: platform: fix OF node refcount leak
We need to call of_node_put() for device nodes obtained with
of_find_node_by_path().

Fixes: 3aa0582fdb ("of: platform: populate /firmware/ node from of_platform_default_populate_init()")
Reported-by: Loys Ollivier <lollivier@baylibre.com>
Cc: Frank Rowand <frowand.list@gmail.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2018-01-23 10:15:11 +01:00
Arend van Spriel
3c47d19ff4 drivers: base: add coredump driver ops
This adds the coredump driver operation. When the driver defines it
a coredump file is added in the sysfs folder of the device upon
driver binding. The file is removed when the driver is unbound.
User-space can trigger a coredump for this device by echo'ing to
the coredump file.

Signed-off-by: Arend van Spriel <aspriel@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-01-23 09:47:05 +01:00