Commit Graph

1191 Commits

Author SHA1 Message Date
Corentin Labbe
47b934875b media: ivtv: remove ivtv-alsa-mixer
ivtv-alsa-mixer functions was introduced in commit 269c11fbac
("[media] ivtv, ivtv-alsa: Add initial ivtv-alsa interface driver for ivtv")
But according to commit message, ivtv-alsa-mixer.c was already dead code.
5 years after, we should remove it.

Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
[hans.verkuil@cisco.com: removed forgotten ivtv-alsa-mixer.h include]
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-02-26 08:11:42 -05:00
Corentin Labbe
26a6181f34 media: cx18: remove unused cx18-alsa-mixer
cx18-alsa-mixer functions are not used since commit 4cb565cc27
("V4L/DVB: cx18: make it so cx18-alsa-main.c compiles") 9 year later,
let's just remove them.

Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-02-26 08:11:06 -05:00
Gustavo A. R. Silva
07837433ca media: pci: cx88-input: use 64-bit arithmetic instead of 32-bit
Add suffix LL to constant 1000000 in order to give the compiler
complete information about the proper arithmetic to use. Notice
that this constant is used in a context that expects an expression
of type ktime_t (64 bits, signed).

The expression ir->polling * 1000000 is currently being evaluated
using 32-bit arithmetic.

Addresses-Coverity-ID: 1392628 ("Unintentional integer overflow")
Addresses-Coverity-ID: 1392630 ("Unintentional integer overflow")

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-02-26 08:08:46 -05:00
Colin Ian King
67300abdbe media: cx25821: prevent out-of-bounds read on array card
Currently an out of range dev->nr is detected by just reporting the
issue and later on an out-of-bounds read on array card occurs because
of this. Fix this by checking the upper range of dev->nr with the size
of array card (removes the hard coded size), move this check earlier
and also exit with the error -ENOSYS to avoid the later out-of-bounds
array read.

Detected by CoverityScan, CID#711191 ("Out-of-bounds-read")

Fixes: commit 02b20b0b4c ("V4L/DVB (12730): Add conexant cx25821 driver")

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
[hans.verkuil@cisco.com: %ld -> %zd]
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-02-26 08:00:06 -05:00
Yong Zhi
b39082e2be media: intel-ipu3: cio2: Use SPDX license headers
Adopt SPDX license headers for ipu3 cio2 driver.

Signed-off-by: Yong Zhi <yong.zhi@intel.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-02-23 02:28:18 -05:00
Yong Zhi
d69a5a2cd1 media: intel-ipu3: cio2: Disable and sync irq before stream off
This is to avoid pending interrupts to be handled during
stream off, in which case, the ready buffer will be removed
from buffer list, thus not all buffers can be returned to VB2
as expected. Disable CIO2 irq at cio2_hw_exit() so no new
interrupts are generated.

Signed-off-by: Yong Zhi <yong.zhi@intel.com>
Signed-off-by: Tianshu Qiu <tian.shu.qiu@intel.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-02-23 02:26:07 -05:00
Hans Verkuil
6884db3c5f media: cobalt: add SPDX license info
Replace the old license information with the corresponding SPDX
license.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-02-14 13:15:33 -05:00
Linus Torvalds
a9a08845e9 vfs: do bulk POLL* -> EPOLL* replacement
This is the mindless scripted replacement of kernel use of POLL*
variables as described by Al, done by this script:

    for V in IN OUT PRI ERR RDNORM RDBAND WRNORM WRBAND HUP RDHUP NVAL MSG; do
        L=`git grep -l -w POLL$V | grep -v '^t' | grep -v /um/ | grep -v '^sa' | grep -v '/poll.h$'|grep -v '^D'`
        for f in $L; do sed -i "-es/^\([^\"]*\)\(\<POLL$V\>\)/\\1E\\2/" $f; done
    done

with de-mangling cleanups yet to come.

NOTE! On almost all architectures, the EPOLL* constants have the same
values as the POLL* constants do.  But they keyword here is "almost".
For various bad reasons they aren't the same, and epoll() doesn't
actually work quite correctly in some cases due to this on Sparc et al.

The next patch from Al will sort out the final differences, and we
should be all done.

Scripted-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-02-11 14:34:03 -08:00
Linus Torvalds
68c5735eaa media updates for v4.16-rc1
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Merge tag 'media/v4.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media updates from Mauro Carvalho Chehab:

 - videobuf2 was moved to a media/common dir, as it is now used by the
   DVB subsystem too

 - Digital TV core memory mapped support interface

 - new sensor driver: ov7740

 - several improvements at ddbridge driver

 - new V4L2 driver: IPU3 CIO2 CSI-2 receiver unit, found on some Intel
   SoCs

 - new tuner driver: tda18250

 - finally got rid of all LIRC staging drivers

 - as we don't have old lirc drivers anymore, restruct the lirc device
   code

 - add support for UVC metadata

 - add a new staging driver for NVIDIA Tegra Video Decoder Engine

 - DVB kAPI headers moved to include/media

 - synchronize the kAPI and uAPI for the DVB subsystem, removing the gap
   for non-legacy APIs

 - reduce the kAPI gap for V4L2

 - lots of other driver enhancements, cleanups, etc.

* tag 'media/v4.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (407 commits)
  media: v4l2-compat-ioctl32.c: make ctrl_is_pointer work for subdevs
  media: v4l2-compat-ioctl32.c: refactor compat ioctl32 logic
  media: v4l2-compat-ioctl32.c: don't copy back the result for certain errors
  media: v4l2-compat-ioctl32.c: drop pr_info for unknown buffer type
  media: v4l2-compat-ioctl32.c: copy clip list in put_v4l2_window32
  media: v4l2-compat-ioctl32.c: fix ctrl_is_pointer
  media: v4l2-compat-ioctl32.c: copy m.userptr in put_v4l2_plane32
  media: v4l2-compat-ioctl32.c: avoid sizeof(type)
  media: v4l2-compat-ioctl32.c: move 'helper' functions to __get/put_v4l2_format32
  media: v4l2-compat-ioctl32.c: fix the indentation
  media: v4l2-compat-ioctl32.c: add missing VIDIOC_PREPARE_BUF
  media: v4l2-ioctl.c: don't copy back the result for -ENOTTY
  media: v4l2-ioctl.c: use check_fmt for enum/g/s/try_fmt
  media: vivid: fix module load error when enabling fb and no_error_inj=1
  media: dvb_demux: improve debug messages
  media: dvb_demux: Better handle discontinuity errors
  media: cxusb, dib0700: ignore XC2028_I2C_FLUSH
  media: ts2020: avoid integer overflows on 32 bit machines
  media: i2c: ov7740: use gpio/consumer.h instead of gpio.h
  media: entity: Add a nop variant of media_entity_cleanup
  ...
2018-02-06 11:27:48 -08:00
Linus Torvalds
168fe32a07 Merge branch 'misc.poll' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull poll annotations from Al Viro:
 "This introduces a __bitwise type for POLL### bitmap, and propagates
  the annotations through the tree. Most of that stuff is as simple as
  'make ->poll() instances return __poll_t and do the same to local
  variables used to hold the future return value'.

  Some of the obvious brainos found in process are fixed (e.g. POLLIN
  misspelled as POLL_IN). At that point the amount of sparse warnings is
  low and most of them are for genuine bugs - e.g. ->poll() instance
  deciding to return -EINVAL instead of a bitmap. I hadn't touched those
  in this series - it's large enough as it is.

  Another problem it has caught was eventpoll() ABI mess; select.c and
  eventpoll.c assumed that corresponding POLL### and EPOLL### were
  equal. That's true for some, but not all of them - EPOLL### are
  arch-independent, but POLL### are not.

  The last commit in this series separates userland POLL### values from
  the (now arch-independent) kernel-side ones, converting between them
  in the few places where they are copied to/from userland. AFAICS, this
  is the least disruptive fix preserving poll(2) ABI and making epoll()
  work on all architectures.

  As it is, it's simply broken on sparc - try to give it EPOLLWRNORM and
  it will trigger only on what would've triggered EPOLLWRBAND on other
  architectures. EPOLLWRBAND and EPOLLRDHUP, OTOH, are never triggered
  at all on sparc. With this patch they should work consistently on all
  architectures"

* 'misc.poll' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (37 commits)
  make kernel-side POLL... arch-independent
  eventpoll: no need to mask the result of epi_item_poll() again
  eventpoll: constify struct epoll_event pointers
  debugging printk in sg_poll() uses %x to print POLL... bitmap
  annotate poll(2) guts
  9p: untangle ->poll() mess
  ->si_band gets POLL... bitmap stored into a user-visible long field
  ring_buffer_poll_wait() return value used as return value of ->poll()
  the rest of drivers/*: annotate ->poll() instances
  media: annotate ->poll() instances
  fs: annotate ->poll() instances
  ipc, kernel, mm: annotate ->poll() instances
  net: annotate ->poll() instances
  apparmor: annotate ->poll() instances
  tomoyo: annotate ->poll() instances
  sound: annotate ->poll() instances
  acpi: annotate ->poll() instances
  crypto: annotate ->poll() instances
  block: annotate ->poll() instances
  x86: annotate ->poll() instances
  ...
2018-01-30 17:58:07 -08:00
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
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
Yong Zhi
dcd80955a0 media: intel-ipu3: cio2: fix for wrong vb2buf state warnings
cio2 driver should release buffer with QUEUED state
when start_stream op failed, wrong buffer state will
cause vb2 core throw a warning.

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>
2018-01-05 12:44:10 -05:00
Yong Zhi
c7cbef1fdb media: intel-ipu3: cio2: fix a crash with out-of-bounds access
When dmabuf is used for BLOB type frame, the frame
buffers allocated by gralloc will hold more pages
than the valid frame data due to height alignment.

In this case, the page numbers in sg list could exceed the
FBPT upper limit value - max_lops(8)*1024 to cause crash.

Limit the LOP access to the valid data length
to avoid FBPT sub-entries overflow.

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>
2018-01-05 12:43:20 -05:00
Arnd Bergmann
883dd4c1b8 media: intel-ipu3: cio2: fix building with large PAGE_SIZE
The driver apparently assumes that the device uses the same page size
as the CPU, but also assumes that this is 4096 bytes. On architectures
with a larger page size like 65536 bytes, we get a warning about an
integer overflow:

drivers/media/pci/intel/ipu3/ipu3-cio2.c: In function 'cio2_fbpt_entry_init_dummy':
arch/arm64/include/asm/page-def.h:28:20: error: large integer implicitly truncated to unsigned type [-Werror=overflow]
 #define PAGE_SIZE  (_AC(1, UL) << PAGE_SHIFT)
                    ^
drivers/media/pci/intel/ipu3/ipu3-cio2.h:404:26: note: in expansion of macro 'PAGE_SIZE'
 #define CIO2_PAGE_SIZE   PAGE_SIZE
                          ^~~~~~~~~
drivers/media/pci/intel/ipu3/ipu3-cio2.c:172:3: note: in expansion of macro 'CIO2_PAGE_SIZE'
   CIO2_PAGE_SIZE / sizeof(u32) * CIO2_MAX_LOPS;

Obviously this won't work, but the driver is also unlikely to ever be
used on such an architecture, so the easiest workaround is to define
the CIO2_PAGE_SIZE macro to the size that the hardware actually uses.

Fixes: c2a6a07afe ("media: intel-ipu3: cio2: add new MIPI-CSI2 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>
2018-01-05 12:42:19 -05:00
Arnd Bergmann
2086dd3570 media: intel-ipu3: cio2: mark PM functions as __maybe_unused
When CONFIG_PM is disabled, we get harmless warnings about the
suspend/resume callbacks being unused:

drivers/media/pci/intel/ipu3/ipu3-cio2.c:1993:12: error: 'cio2_resume' defined but not used [-Werror=unused-function]
drivers/media/pci/intel/ipu3/ipu3-cio2.c:1967:12: error: 'cio2_suspend' defined but not used [-Werror=unused-function]

This marks them as __maybe_unused to shut up the warnings.

Fixes: c2a6a07afe ("media: intel-ipu3: cio2: add new MIPI-CSI2 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>
2018-01-05 12:41:13 -05:00
Sakari Ailus
6afda56a34 media: intel-ipu3: Rename arr_size macro, use min
The arr_size() macro which is used to calculate the size of the chunk in the
array to be arranged resembles ARRAY_SIZE naming-wise. Avoid confusion by
renaming it to CHUNK_SIZE instead.

Also use min() macro to calculate the minimum of two numbers.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-01-05 12:40:49 -05:00
Mauro Carvalho Chehab
6e6a8b5a38 media: replace all <spaces><tab> occurrences
There are a lot of places where sequences of space/tabs are
found. Get rid of all spaces before tabs.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-01-04 13:15:05 -05:00
Mauro Carvalho Chehab
4a3fad709b media: fix usage of whitespaces and on indentation
On several places, whitespaces are being used for indentation,
or even at the end of the line.

Fix them.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-01-04 13:12:01 -05:00
Yong Zhi
c2a6a07afe media: intel-ipu3: cio2: add new MIPI-CSI2 driver
This patch adds CIO2 CSI-2 device driver for
Intel's IPU3 camera sub-system support.

Signed-off-by: Yong Zhi <yong.zhi@intel.com>
Signed-off-by: Hyungwoo Yang <hyungwoo.yang@intel.com>
Signed-off-by: Rajmohan Mani <rajmohan.mani@intel.com>
Signed-off-by: Vijaykumar Ramya <ramya.vijaykumar@intel.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-29 07:00:51 -05:00
Mauro Carvalho Chehab
ada795551a media: don't include drivers/media/i2c at cflags
Most of the I2C headers got moved a long time ago to
include/media/i2c. Stop including them at the patch.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-28 14:14:09 -05:00
Mauro Carvalho Chehab
fada193559 media: move dvb kAPI headers to include/media
Except for DVB, all media kAPI headers are at include/media.

Move the headers to it.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-28 13:16:01 -05:00
Daniel Scheller
12081a25a6 media: ddbridge: move CI detach code to ddbridge-ci.c
Move the CI teardown code to ddbridge-ci.c where everything else related
to CI hardware lives.

Cc: Ralph Metzler <rjkm@metzlerbros.de>
Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-19 07:19:51 -05:00
Daniel Scheller
ae49432810 media: ddbridge: improve ddb_ports_attach() failure handling
As all error handling improved quite a bit, don't stop attaching frontends
if one of them failed, since - if other tuner modules are connected to
the PCIe bridge - other hardware may just work, so don't break on a single
port failure, but rather initialise as much as possible. Ie. if there are
issues with a C2T2-equipped PCIe bridge card which has additional DuoFlex
modules connected and the bridge generally works, the DuoFlex tuners can
still work fine.

If all ports failed to initialise where connected hardware was detected on
at first, return -ENODEV though to cause this PCI device to fail and free
all allocated resources. In any case, leave a kernel log warning (or
error, even) if things went wrong.

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-19 07:18:38 -05:00
Daniel Scheller
c0e10260cc media: ddbridge: detach first input if the second one failed to init
In ddb_ports_attach(), if the second input of a dual tuner failed to
initialise, the first one can be detached (and resources be freed) as
this will be counted as the whole port having failed to initialise,
thus the first one won't be used anyway.

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-19 07:17:50 -05:00
Daniel Scheller
b7b9a5a93b media: ddbridge: fix deinit order in case of failure in ddb_init()
In ddb_init(), the deinitialization sequence isn't correct when handling
errors, and could even lead to a memleak depending on where things failed.
Fix the deinit order.

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-19 07:17:28 -05:00
Daniel Scheller
b5472c12fa media: ddbridge: deduplicate calls to dvb_ca_en50221_init()
All CI types do dvb_ca_en50221_init() with the same arguments. Move this
call after the switch-case to remove the repetition in every case block.

Cc: Ralph Metzler <rjkm@metzlerbros.de>
Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-19 07:17:11 -05:00
Daniel Scheller
25ac563abf media: ddbridge: completely tear down input resources on failure
In dvb_input_attach(), whenever a demod driver fails to initialise, or if
frontend registration fails, perform a full input/frontend teardown using
dvb_input_detach() (which can safely be done since the current init state
is tracked in the 'attached' struct member). Claimed resources thus are
freed which aren't needed when an input or a port is not functional.

While at it, in ddb_ports_detach(), detach the secondary input first. Also
increase the kernlog severity of TDA18212 errors and tuner failures in
general.

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-19 07:16:53 -05:00
Daniel Scheller
fac37bb124 media: ddbridge: fix resources cleanup for CI hardware
Do kfree() on port->en->data instead of port->en. port->en only holds a
ptr to a struct dvb_ca_en50221, which is a member either of a memalloc'ed
struct ddb_ci (DuoFlex CI, Octopus CI Duo) or a struct cxd (CXD2099AR
based Single Flex, allocated by the cxd2099 driver). port->en.data
though holds the ptr to the allocated memory, which must rather be
kfree()'d. Change this accordingly.

Cc: Ralph Metzler <rjkm@metzlerbros.de>
Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-19 07:16:23 -05:00
Daniel Scheller
a1c484b3a0 media: ddbridge: unregister I2C tuner client before detaching fe's
Currently, rmmod ddbridge on a KASAN enabled kernel yields this report
for hardware that utilises the tda18212 tuner driver:

  [   50.355229] ==================================================================
  [   50.355271] BUG: KASAN: use-after-free in tda18212_remove+0x5c/0xb0 [tda18212]
  [   50.355290] Write of size 288 at addr ffff8800c235cf18 by task rmmod/285

  [   50.355316] CPU: 1 PID: 285 Comm: rmmod Not tainted 4.15.0-rc1-13744-g352a86ad536f #11
  [   50.355318] Hardware name: Gigabyte Technology Co., Ltd. P35-DS3/P35-DS3, BIOS F3 06/11/2007
  [   50.355319] Call Trace:
  [   50.355326]  dump_stack+0x46/0x61
  [   50.355332]  print_address_description+0x79/0x270
  [   50.355336]  ? tda18212_remove+0x5c/0xb0 [tda18212]
  [   50.355339]  kasan_report+0x229/0x340
  [   50.355342]  memset+0x1f/0x40
  [   50.355345]  tda18212_remove+0x5c/0xb0 [tda18212]
  [   50.355350]  i2c_device_remove+0x97/0xe0
  [   50.355355]  device_release_driver_internal+0x267/0x510
  [   50.355358]  bus_remove_device+0x296/0x470
  [   50.355360]  device_del+0x35c/0x890
  [   50.355363]  ? __device_links_no_driver+0x1c0/0x1c0
  [   50.355367]  ? cxd2841er_get_algo+0x10/0x10 [cxd2841er]
  [   50.355371]  ? cxd2841er_get_algo+0x10/0x10 [cxd2841er]
  [   50.355374]  ? __module_text_address+0xe/0x140
  [   50.355377]  device_unregister+0x9/0x20
  [   50.355382]  dvb_input_detach.isra.24+0x286/0x480 [ddbridge]
  [   50.355388]  ddb_ports_detach+0x15f/0x4f0 [ddbridge]
  [   50.355393]  ddb_remove+0x3c/0xb0 [ddbridge]
  [   50.355397]  pci_device_remove+0x93/0x1d0
  [   50.355400]  device_release_driver_internal+0x267/0x510
  [   50.355403]  driver_detach+0xb9/0x1b0
  [   50.355406]  bus_remove_driver+0xd0/0x1f0
  [   50.355410]  pci_unregister_driver+0x25/0x210
  [   50.355415]  module_exit_ddbridge+0xc/0x45 [ddbridge]
  [   50.355418]  SyS_delete_module+0x314/0x440
  [   50.355420]  ? free_module+0x5b0/0x5b0
  [   50.355423]  ? exit_to_usermode_loop+0xa9/0xc0
  [   50.355425]  ? free_module+0x5b0/0x5b0
  [   50.355428]  do_syscall_64+0x179/0x4c0
  [   50.355432]  ? do_page_fault+0x1b/0x60
  [   50.355435]  entry_SYSCALL64_slow_path+0x25/0x25
  [   50.355438] RIP: 0033:0x7fe65d08ade7
  [   50.355439] RSP: 002b:00007fff5a6a09a8 EFLAGS: 00000202 ORIG_RAX: 00000000000000b0
  [   50.355443] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fe65d08ade7
  [   50.355445] RDX: 000000000000000a RSI: 0000000000000800 RDI: 0000000000f4e268
  [   50.355447] RBP: 0000000000f4e200 R08: 0000000000000000 R09: 1999999999999999
  [   50.355449] R10: 0000000000000891 R11: 0000000000000202 R12: 00007fff5a6a14ef
  [   50.355451] R13: 0000000000000000 R14: 0000000000f4e200 R15: 0000000000f4d010

  [   50.355462] Allocated by task 164:
  [   50.355477]  cxd2841er_attach+0xc3/0x7f0 [cxd2841er]
  [   50.355482]  demod_attach_cxd28xx+0x14c/0x3f0 [ddbridge]
  [   50.355486]  dvb_input_attach+0x671/0x1e20 [ddbridge]
  [   50.355490]  ddb_ports_attach+0x3d7/0xbf0 [ddbridge]
  [   50.355495]  ddb_init+0x4b3/0xa30 [ddbridge]
  [   50.355499]  ddb_probe+0xa51/0xfe0 [ddbridge]
  [   50.355501]  pci_device_probe+0x279/0x480
  [   50.355504]  driver_probe_device+0x46f/0x7a0
  [   50.355506]  __driver_attach+0x133/0x170
  [   50.355509]  bus_for_each_dev+0x10a/0x190
  [   50.355511]  bus_add_driver+0x2a3/0x5a0
  [   50.355513]  driver_register+0x182/0x3a0
  [   50.355516]  arc4_set_key+0x8f/0x2a0 [arc4]
  [   50.355518]  do_one_initcall+0x77/0x1d0
  [   50.355521]  do_init_module+0x1c2/0x548
  [   50.355523]  load_module+0x5e61/0x8df0
  [   50.355525]  SyS_finit_module+0x142/0x150
  [   50.355527]  do_syscall_64+0x179/0x4c0
  [   50.355529]  return_from_SYSCALL_64+0x0/0x65

  [   50.355539] Freed by task 285:
  [   50.355551]  kfree+0x6c/0xa0
  [   50.355558]  __dvb_frontend_free+0x81/0xb0 [dvb_core]
  [   50.355562]  dvb_input_detach.isra.24+0x17c/0x480 [ddbridge]
  [   50.355566]  ddb_ports_detach+0x15f/0x4f0 [ddbridge]
  [   50.355570]  ddb_remove+0x3c/0xb0 [ddbridge]
  [   50.355573]  pci_device_remove+0x93/0x1d0
  [   50.355576]  device_release_driver_internal+0x267/0x510
  [   50.355578]  driver_detach+0xb9/0x1b0
  [   50.355580]  bus_remove_driver+0xd0/0x1f0
  [   50.355583]  pci_unregister_driver+0x25/0x210
  [   50.355587]  module_exit_ddbridge+0xc/0x45 [ddbridge]
  [   50.355590]  SyS_delete_module+0x314/0x440
  [   50.355592]  do_syscall_64+0x179/0x4c0
  [   50.355594]  return_from_SYSCALL_64+0x0/0x65

  [   50.355604] The buggy address belongs to the object at ffff8800c235cd80
                  which belongs to the cache kmalloc-2048 of size 2048
  [   50.355630] The buggy address is located 408 bytes inside of
                  2048-byte region [ffff8800c235cd80, ffff8800c235d580)
  [   50.355652] The buggy address belongs to the page:
  [   50.355666] page:ffffea0002a7bc20 count:1 mapcount:0 mapping:ffff8800c235c500 index:0x0 compound_mapcount: 0
  [   50.355688] flags: 0x4000000000008100(slab|head)
  [   50.355703] raw: 4000000000008100 ffff8800c235c500 0000000000000000 0000000100000003
  [   50.355720] raw: ffffea000382b4b0 ffffea0002b91550 ffff88010b000800
  [   50.355734] page dumped because: kasan: bad access detected

  [   50.355754] Memory state around the buggy address:
  [   50.355767]  ffff8800c235ce00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
  [   50.355783]  ffff8800c235ce80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
  [   50.355800] >ffff8800c235cf00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
  [   50.355815]                             ^
  [   50.355827]  ffff8800c235cf80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
  [   50.355843]  ffff8800c235d000: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
  [   50.355858] ==================================================================

This is due to dvb_frontend_detach() being called before
i2c_unregister_device() on the TDA18212 tuner client instance, as
dvb_frontend_detach() causes the demod drivers to release all their
resources, and the tuner driver's _remove method does further cleanup on
the now invalid (freed) resources. Fix this by putting the I2C client
deregistration in dvb_input_detach() to state/case 0x30, right before the
call to dvb_frontend_detach(). This also makes sure that any further
(tuner) hardware driven by I2C client drivers unload cleanly.

Fixes: 1502efd2d5 ("media: ddbridge: fix teardown/deregistration order in ddb_input_detach()")

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-19 07:16:06 -05:00
Bjorn Helgaas
2453887924 media: netup_unidvb: use PCI_EXP_DEVCTL2_COMP_TIMEOUT macro
Use the existing PCI_EXP_DEVCTL2_COMP_TIMEOUT macro instead of hard-coding
the PCIe Completion Timeout Value mask.  No functional change intended.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-19 07:06:03 -05:00
Mauro Carvalho Chehab
4eb2f55728 media: v4l2-subdev: better document IO pin configuration flags
Convert V4L2_SUBDEV_IO_PIN_* to enums, use BIT() and document
via kernel-doc.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-18 14:14:29 -05:00
Mauro Carvalho Chehab
1ac051631a media: get rid of i2c-addr.h
In the past, the same I2C address were used on multiple places.
After I2C rebinding changes, this is no longer needed. So, we
can just get rid of this header, placing the I2C address where
they belong, e. g. either at bttv driver or at tvtuner.

Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-18 11:52:24 -05:00
Mauro Carvalho Chehab
4839c58f03 media: v4l2-dev: convert VFL_TYPE_* into an enum
Using enums makes easier to document, as it can use kernel-doc
markups. It also allows cross-referencing, with increases the
kAPI readability.

Please notice that now cx88_querycap() has to have a default for
the VFL type, as there are more types than supported by the driver.

Acked-By: Mike Isely <isely@pobox.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-18 11:49:40 -05:00
Daniel Scheller
78e41c16c0 media: ddbridge: stv09xx: detach frontends on lnb failure
While the failure handling in dvb_input_attach() has been improved lately
so any tuner failure won't result in demod driver modules with a
usecount > 0 anymore (thus requiring rmmod -f), there's still an issue
with stv090x and stv0910 based tuner modules, in that LNB driver attach
failures leave an attached demod frontend driver behind which have a
usecount of > 0 in this failure case, due to them not being detached/
released. Fix this by detaching the demod frontends if the LNB driver
fails.

Richard tested and verified the changes with STV0910 hardware, thus adding
his Tested-by.

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Tested-by: Richard Scobie <rascobie@slingshot.co.nz>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-14 12:18:38 -05:00
Sean Young
ab5222ed16 media: merge ir_tx_z8f0811_haup and ir_rx_z8f0811_haup i2c devices
These two devices ids are really just one device with multiple
addresses. Probing becomes much simpler if we simply fold this into
one i2c device with two address.

Note that this breaks the lirc_zilog driver, however we will teach
ir-kbd-i2c to do what lirc_zilog does in a later commit.

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-14 09:58:20 -05:00
Sean Young
afc7f24c01 media: rc: i2c: set parent of rc device and improve name
With the parent set for the rc device, the messages clearly state
that it is attached via i2c. The additional printk is unnecessary.

These are the old messages:

rc rc1: i2c IR (Hauppauge WinTV PVR-150 as /devices/virtual/rc/rc1
ir-kbd-i2c: i2c IR (Hauppauge WinTV PVR-150 detected at i2c-10/10-0071/ir0 [ivtv i2c driver #0]

Now we simply get:

rc rc1: Hauppauge WinTV PVR-150 as /devices/pci0000:00/0000:00:1e.0/0000:02:00.0/i2c-10/10-0071/rc/rc1

Note that we no longer copy the name. I've checked all call sites
to verfiy this is not a problem.

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-14 09:58:19 -05:00
Christophe JAILLET
45392ff688 media: bt8xx: Fix err 'bt878_probe()'
This is odd to call 'pci_disable_device()' in an error path before a
coresponding successful 'pci_enable_device()'.

Return directly instead.

Fixes: 77e0be1210 ("V4L/DVB (4176): Bug-fix: Fix memory overflow")

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-14 09:52:58 -05:00
Daniel Scheller
b32a2b42f7 media: ddbridge: improve error handling logic on fe attach failures
This change makes sure that demod frontends are always detached whenever
a tuner frontend attach failed. Achieve this by moving the detach-on-
failure logic at the end of dvb_input_attach(), and adding a goto to this
block on every tuner attach failure case, so if an error occurs, there are
no stray attached frontends left. As a side effect, this removes some
duplicated code.

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-13 10:19:41 -05:00
Matthias Schwarzott
7c4f4d1d7e media: cx23885: Use semicolon after assignment instead of comma
End assignments by semicolon instead of comma.

Signed-off-by: Matthias Schwarzott <zzam@gentoo.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-12 05:53:00 -05:00
Matthias Schwarzott
7dbbb4bf1e media: si2165: Make checkpatch happy
Fix almost all of checkpatch --strict warnings.

The remaining warnings are about:
* macro REG16 (should be enclosed in parentheses)
* macro REG16 (Macro argument reuse)

Signed-off-by: Matthias Schwarzott <zzam@gentoo.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-12 05:33:18 -05:00
Mauro Carvalho Chehab
04f849c00c media: cx25821-alsa: fix usage of a pointer printk
As warned by smatch:
	drivers/media/pci/cx25821/cx25821-alsa.c:155 cx25821_alsa_dma_init() warn: argument 3 to %08lx specifier is cast from pointer

Use the standard %p to print a pointer.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-11 13:04:56 -05:00
Mauro Carvalho Chehab
e639c86955 media: pt1: fix logic when pt1_nr_tables is zero or negative
pt1_nr_tables is a modprobe parameter. The way the logic
handles it, it can't be negative. However, user can
set it to zero.

If set to zero, however, it will cause troubles at
pt1_init_tables(), as reported by smatch:
	drivers/media/pci/pt1/pt1.c:468 pt1_init_tables() error: uninitialized symbol 'first_pfn'.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-11 13:04:55 -05:00
Mauro Carvalho Chehab
7b303d2cae media: ddbridge: shut up a new warning
drivers/media/pci/ddbridge/ddbridge-ci.c:321:5: warning: no previous prototype for 'ddb_ci_attach' [-Wmissing-prototypes]
 int ddb_ci_attach(struct ddb_port *port, u32 bitrate)
     ^~~~~~~~~~~~~

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-11 13:04:49 -05:00
Daniel Scheller
40f80610e8 media: ddbridge: update driver version number
Update the driver version number/string to 0.9.32-integrated.

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-11 13:04:48 -05:00
Daniel Scheller
1c71450151 media: ddbridge/max: prefix lnb_init_fmode() and fe_attach_mxl5xx()
Add a ddb_ prefix to the two functions to better avoid conflicts in the
global namespace, ie. when building everything into the kernel image.

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-11 13:04:47 -05:00
Daniel Scheller
2d8c98b820 media: ddbridge/max: rename ddbridge-maxs8.[c|h] to ddbridge-max.[c|h]
Rename the MaxS4/8 support files following upstream. References to these
files and descriptions have been updated aswell.

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-11 13:04:47 -05:00
Daniel Scheller
04bdf86360 media: ddbridge/ci: change debug printing to debug severity
slot_ts_enable_xo2() logged debug output to info instead of debug, so
fix this up.

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-11 13:04:46 -05:00
Daniel Scheller
70d3ae1bea media: ddbridge: split off CI (common interface) from ddbridge-core
Move all CI device support related code from ddbridge-core to ddbridge-ci,
following the previously split off MaxS4/8 support.

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-11 13:04:46 -05:00