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If m5602_write_sensor() or m5602_write_bridge() fail, do not continue to
initialize the device but return the error to the calling funtion.
Cc: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Link: https://lore.kernel.org/r/20210503115736.2104747-64-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This reverts commit a21a0eb56b4e8fe4a330243af8030f890cde2283.
Because of recent interactions with developers from @umn.edu, all
commits from them have been recently re-reviewed to ensure if they were
correct or not.
Upon review, this commit was found to be incorrect for the reasons
below, so it must be reverted. It will be fixed up "correctly" in a
later kernel change.
Different error values should never be "OR" together and expect anything
sane to come out of the result.
Cc: Aditya Pakki <pakki001@umn.edu>
Cc: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Link: https://lore.kernel.org/r/20210503115736.2104747-63-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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If m5602_write_bridge times out, it will return a negative error value.
So properly check for this and handle the error correctly instead of
just ignoring it.
Cc: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Alaa Emad <alaaemadhossney.ae@gmail.com>
Link: https://lore.kernel.org/r/20210503115736.2104747-62-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This reverts commit 656025850074f5c1ba2e05be37bda57ba2b8d491.
Because of recent interactions with developers from @umn.edu, all
commits from them have been recently re-reviewed to ensure if they were
correct or not.
Upon review, this commit was found to be incorrect for the reasons
below, so it must be reverted. It will be fixed up "correctly" in a
later kernel change.
Different error values should never be "OR" together and expect anything
sane to come out of the result.
Cc: Aditya Pakki <pakki001@umn.edu>
Cc: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Link: https://lore.kernel.org/r/20210503115736.2104747-61-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The function sp8870_readreg returns a negative value when i2c_transfer
fails so properly check for this and return the error if it happens.
Cc: Sean Young <sean@mess.org>
Cc: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Alaa Emad <alaaemadhossney.ae@gmail.com>
Link: https://lore.kernel.org/r/20210503115736.2104747-60-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This reverts commit 467a37fba93f2b4fe3ab597ff6a517b22b566882.
Because of recent interactions with developers from @umn.edu, all
commits from them have been recently re-reviewed to ensure if they were
correct or not.
Upon review, this commit was found to be incorrect for the reasons
below, so it must be reverted. It will be fixed up "correctly" in a
later kernel change.
This commit is not properly checking for an error at all, so if a
read succeeds from this device, it will error out.
Cc: Aditya Pakki <pakki001@umn.edu>
Cc: Sean Young <sean@mess.org>
Cc: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Link: https://lore.kernel.org/r/20210503115736.2104747-59-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This reverts commit 5b711870bec4dc9a6d705d41e127e73944fa3650.
Because of recent interactions with developers from @umn.edu, all
commits from them have been recently re-reviewed to ensure if they were
correct or not.
Upon review, this commit was found to do does nothing useful as a user
can do nothing with this information and if an error did happen, the
code would continue on as before. Because of this, just revert it.
Cc: Kangjie Lu <kjlu@umn.edu>
Cc: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Link: https://lore.kernel.org/r/20210503115736.2104747-7-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This reverts commit d39083234c60519724c6ed59509a2129fd2aed41.
Because of recent interactions with developers from @umn.edu, all
commits from them have been recently re-reviewed to ensure if they were
correct or not.
Upon review, it was determined that this commit is not needed at all as
the media core already prevents memory disclosure on this codepath, so
just drop the extra memset happening here.
Cc: Kangjie Lu <kjlu@umn.edu>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Fixes: d39083234c60 ("media: rcar_drif: fix a memory disclosure")
Cc: stable <stable@vger.kernel.org>
Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Reviewed-by: Fabrizio Castro <fabrizio.castro.jz@renesas.com>
Link: https://lore.kernel.org/r/20210503115736.2104747-4-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge yet more updates from Andrew Morton:
"This is everything else from -mm for this merge window.
90 patches.
Subsystems affected by this patch series: mm (cleanups and slub),
alpha, procfs, sysctl, misc, core-kernel, bitmap, lib, compat,
checkpatch, epoll, isofs, nilfs2, hpfs, exit, fork, kexec, gcov,
panic, delayacct, gdb, resource, selftests, async, initramfs, ipc,
drivers/char, and spelling"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (90 commits)
mm: fix typos in comments
mm: fix typos in comments
treewide: remove editor modelines and cruft
ipc/sem.c: spelling fix
fs: fat: fix spelling typo of values
kernel/sys.c: fix typo
kernel/up.c: fix typo
kernel/user_namespace.c: fix typos
kernel/umh.c: fix some spelling mistakes
include/linux/pgtable.h: few spelling fixes
mm/slab.c: fix spelling mistake "disired" -> "desired"
scripts/spelling.txt: add "overflw"
scripts/spelling.txt: Add "diabled" typo
scripts/spelling.txt: add "overlfow"
arm: print alloc free paths for address in registers
mm/vmalloc: remove vwrite()
mm: remove xlate_dev_kmem_ptr()
drivers/char: remove /dev/kmem for good
mm: fix some typos and code style problems
ipc/sem.c: mundane typo fixes
...
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The section "19) Editor modelines and other cruft" in
Documentation/process/coding-style.rst clearly says, "Do not include any
of these in source files."
I recently receive a patch to explicitly add a new one.
Let's do treewide cleanups, otherwise some people follow the existing code
and attempt to upstream their favoriate editor setups.
It is even nicer if scripts/checkpatch.pl can check it.
If we like to impose coding style in an editor-independent manner, I think
editorconfig (patch [1]) is a saner solution.
[1] https://lore.kernel.org/lkml/20200703073143.423557-1-danny@kdrag0n.dev/
Link: https://lkml.kernel.org/r/20210324054457.1477489-1-masahiroy@kernel.org
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: Miguel Ojeda <ojeda@kernel.org> [auxdisplay]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Pull dma-mapping updates from Christoph Hellwig:
- add a new dma_alloc_noncontiguous API (me, Ricardo Ribalda)
- fix a copyright notice (Hao Fang)
- add an unlikely annotation to dma_mapping_error (Heiner Kallweit)
- remove a pointless empty line (Wang Qing)
- add support for multi-pages map/unmap bencharking (Xiang Chen)
* tag 'dma-mapping-5.13' of git://git.infradead.org/users/hch/dma-mapping:
dma-mapping: add unlikely hint to error path in dma_mapping_error
dma-mapping: benchmark: Add support for multi-pages map/unmap
dma-mapping: benchmark: use the correct HiSilicon copyright
dma-mapping: remove a pointless empty line in dma_alloc_coherent
media: uvcvideo: Use dma_alloc_noncontiguous API
dma-iommu: implement ->alloc_noncontiguous
dma-iommu: refactor iommu_dma_alloc_remap
dma-mapping: add a dma_alloc_noncontiguous API
dma-mapping: refactor dma_{alloc,free}_pages
dma-mapping: add a dma_mmap_pages helper
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Pull drm updates from Dave Airlie:
"The usual lots of work all over the place.
i915 has gotten some Alderlake work and prelim DG1 code, along with a
major locking rework over the GEM code, and brings back the property
of timing out long running jobs using a watchdog. amdgpu has some
Alderbran support (new GPU), freesync HDMI support along with a lot
other fixes.
Outside of the drm, there is a new printf specifier added which should
have all the correct acks/sobs:
- printk fourcc modifier support added %p4cc
Summary:
core:
- drm_crtc_commit_wait
- atomic plane state helpers reworked for full state
- dma-buf heaps API rework
- edid: rework and improvements for displayid
dp-mst:
- better topology logging
bridge:
- Chipone ICN6211
- Lontium LT8912B
- anx7625 regulator support
panel:
- fix lt9611 4k panels handling
simple-kms:
- add plane state helpers
ttm:
- debugfs support
- removal of unused sysfs
- ignore signaled moved fences
- ioremap buffer according to mem caching
i915:
- Alderlake S enablement
- Conversion to dma_resv_locking
- Bring back watchdog timeout support
- legacy ioctl cleanups
- add GEM TDDO and RFC process
- DG1 LMEM preparation work
- intel_display.c refactoring
- Gen9/TGL PCH combination support
- eDP MSO Support
- multiple PSR instance support
- Link training debug updates
- Disable PSR2 support on JSL/EHL
- DDR5/LPDDR5 support for bw calcs
- LSPCON limited to gen9/10 platforms
- HSW/BDW async flip/VTd corruption workaround
- SAGV watermark fixes
- SNB hard hang on ring resume fix
- Limit imported dma-buf size
- move to use new tasklet API
- refactor KBL/TGL/ADL-S display/gt steppings
- refactoring legacy DP/HDMI, FB plane code out
amdgpu:
- uapi: add ioctl to query video capabilities
- Iniital AMD Freesync HDMI support
- Initial Adebaran support
- 10bpc dithering improvements
- DCN secure display support
- Drop legacy IO BAR requirements
- PCIE/S0ix/RAS/Prime/Reset fixes
- Display ASSR support
- SMU gfx busy queues for RV/PCO
- Initial LTTPR display work
amdkfd:
- MMU notifier fixes
- APU fixes
radeon:
- debugfs cleanps
- fw error handling ifix
- Flexible array cleanups
msm:
- big DSI phy/pll cleanup
- sc7280 initial support
- commong bandwidth scaling path
- shrinker locking contention fixes
- unpin/swap support for GEM objcets
ast:
- cursor plane handling reworked
tegra:
- don't register DP AUX channels before connectors
zynqmp:
- fix OOB struct padding memset
gma500:
- drop ttm and medfield support
exynos:
- request_irq cleanup function
mediatek:
- fine tune line time for EOTp
- MT8192 dpi support
- atomic crtc config updates
- don't support HDMI connector creation
mxsdb:
- imx8mm support
panfrost:
- MMU IRQ handling rework
qxl:
- locking fixes
- resource deallocation changes
sun4i:
- add alpha properties to UI/VI layers
vc4:
- RPi4 CEC support
vmwgfx:
- doc cleanups
arc:
- moved to drm/tiny"
* tag 'drm-next-2021-04-28' of git://anongit.freedesktop.org/drm/drm: (1390 commits)
drm/ttm: Don't count pages in SG BOs against pages_limit
drm/ttm: fix return value check
drm/bridge: lt8912b: fix incorrect handling of of_* return values
drm: bridge: fix LONTIUM use of mipi_dsi_() functions
drm: bridge: fix ANX7625 use of mipi_dsi_() functions
drm/amdgpu: page retire over debugfs mechanism
drm/radeon: Fix a missing check bug in radeon_dp_mst_detect()
drm/amd/display: Fix the Wunused-function warning
drm/radeon/r600: Fix variables that are not used after assignment
drm/amdgpu/smu7: fix CAC setting on TOPAZ
drm/amd/display: Update DCN302 SR Exit Latency
drm/amdgpu: enable ras eeprom on aldebaran
drm/amdgpu: RAS harvest on driver load
drm/amdgpu: add ras aldebaran ras eeprom driver
drm/amd/pm: increase time out value when sending msg to SMU
drm/amdgpu: add DMUB outbox event IRQ source define/complete/debug flag
drm/amd/pm: add the callback to get vbios bootup values for vangogh
drm/radeon: Fix size overflow
drm/amdgpu: Fix size overflow
drm/amdgpu: move mmhub ras_func init to ip specific file
...
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab:
- addition of a maintainer's profile for the media subsystem
- addition of i.MX8 IP support
- qcom/camss gained support for hardware version Titan 170
- new RC keymaps
- Lots of other improvements, cleanups and bug fixes
* tag 'media/v5.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (488 commits)
media: coda: fix macroblocks count control usage
media: rkisp1: params: fix wrong bits settings
media: cedrus: Fix H265 status definitions
media: meson-ge2d: fix rotation parameters
media: v4l2-ctrls: fix reference to freed memory
media: venus : hfi: add venus image info into smem
media: venus: Fix internal buffer size calculations for v6.
media: venus: helpers: keep max bandwidth when mbps exceeds the supported range
media: venus: fix hw overload error log condition
media: venus: core: correct firmware name for sm8250
media: venus: core,pm: fix potential infinite loop
media: venus: core: Fix kerneldoc warnings
media: gscpa/stv06xx: fix memory leak
media: cx25821: remove unused including <linux/version.h>
media: staging: media/meson: remove redundant dev_err call
media: adv7842: support 1 block EDIDs, fix clearing EDID
media: adv7842: configure all pads
media: allegro: change kernel-doc comment blocks to normal comments
media: camss: ispif: Remove redundant dev_err call in msm_ispif_subdev_init()
media: i2c: rdamc21: Fix warning on u8 cast
...
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It seems like Fedora 34 ends up enabling a few new gcc warnings, notably
"-Wstringop-overread" and "-Warray-parameter".
Both of them cause what seem to be valid warnings in the kernel, where
we have array size mismatches in function arguments (that are no longer
just silently converted to a pointer to element, but actually checked).
This fixes most of the trivial ones, by making the function declaration
match the function definition, and in the case of intel_pm.c, removing
the over-specified array size from the argument declaration.
At least one 'stringop-overread' warning remains in the i915 driver, but
that one doesn't have the same obvious trivial fix, and may or may not
actually be indicative of a bug.
[ It was a mistake to upgrade one of my machines to Fedora 34 while
being busy with the merge window, but if this is the extent of the
compiler upgrade problems, things are better than usual - Linus ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Commit b2d3bef1aa78 ("media: coda: Add a V4L2 user for control error
macroblocks count") add the control for the decoder devices. But
during streamon() this ioctl gets called for all (encoder and decoder)
devices and on encoder devices this causes a null pointer exception.
Fix this by setting the control only if it is really accessible.
Fixes: b2d3bef1aa78 ("media: coda: Add a V4L2 user for control error macroblocks count")
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Cc: <stable@vger.kernel.org>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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The histogram mode is set using 'rkisp1_params_set_bits'.
Only the bits of the mode should be the value argument for
that function. Otherwise bits outside the mode mask are
turned on which is not what was intended.
Fixes: bae1155cf579 ("media: staging: rkisp1: add output device for parameters")
Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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With these settings, 90deg and 270deg rotation leads to inverted
vertical, fix them to have correct rotation.
Fixes: 59a635327ca7 ("media: meson: Add M2M driver for the Amlogic GE2D Accelerator Unit")
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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When controls are used together with the Request API, then for
each request a v4l2_ctrl_handler struct is allocated. This contains
the controls that can be set in a request. If a control is *not* set in
the request, then the value used in the most recent previous request
must be used, or the current value if it is not found in any outstanding
requests.
The framework tried to find such a previous request and it would set
the 'req' pointer in struct v4l2_ctrl_ref to the v4l2_ctrl_ref of the
control in such a previous request. So far, so good. However, when that
previous request was applied to the hardware, returned to userspace, and
then userspace would re-init or free that request, any 'ref' pointer in
still-queued requests would suddenly point to freed memory.
This was not noticed before since the drivers that use this expected
that each request would always have the controls set, so there was
never any need to find a control in older requests. This requirement
was relaxed, and now this bug surfaced.
It was also made worse by changeset
2fae4d6aabc8 ("media: v4l2-ctrls: v4l2_ctrl_request_complete() should always set ref->req")
which increased the chance of this happening.
The use of the 'req' pointer in v4l2_ctrl_ref was very fragile, so
drop this entirely. Instead add a valid_p_req bool to indicate that
p_req contains a valid value for this control. And if it is false,
then just use the current value of the control.
Note that VIDIOC_G_EXT_CTRLS will always return -EACCES when attempting
to get a control from a request until the request is completed. And in
that case, all controls in the request will have the control value set
(i.e. valid_p_req is true). This means that the whole 'find the most
recent previous request containing a control' idea is pointless, and
the code can be simplified considerably.
The v4l2_g_ext_ctrls_common() function was refactored a bit to make
it more understandable. It also avoids updating volatile controls
in a completed request since that was already done when the request
was completed.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Fixes: 2fae4d6aabc8 ("media: v4l2-ctrls: v4l2_ctrl_request_complete() should always set ref->req")
Fixes: 6fa6f831f095 ("media: v4l2-ctrls: add core request support")
Cc: <stable@vger.kernel.org> # for v5.9 and up
Tested-by: Alexandre Courbot <acourbot@chromium.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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Fill fw version info into smem to be printed as part of
soc info.
Signed-off-by: Dikshita Agarwal <dikshita@codeaurora.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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- Update persist buffer size for encoder to 204800.
- Update persist buffer size calculation for h264 decoder.
- h264d level 6 support needs update in internal buffer size.
update below buffers size
- h264 decoder colocated motion vector buffer.
- h264 decoder VPP command buffer.
- h265 decoder VPP command buffer.
- Update VP9_NUM_FRAME_INFO_BUF to 32.
Signed-off-by: Dikshita Agarwal <dikshita@codeaurora.org>
Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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When the video usecase have macro blocks per sec which is more than
supported, keep the required bus bandwidth as the maximum supported.
Signed-off-by: Vikash Garodia <vgarodia@codeaurora.org>
Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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In current video driver, frequency is calculated for all the
running video instances and check aganist maximum supported frequency.
If both calculated frequency and maximum supported frequency are same,
even then HW overload error is printed.
Fix this by printing error log only when frequency is greater than
maximum supported frequency.
Signed-off-by: Mansur Alisha Shaik <mansur@codeaurora.org>
Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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Firmware name for venus should be qcom/vpu-1.0/venus.mdt, not
qcom/sm8250/venus.mdt.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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The for-loop iterates with a u8 loop counter i and compares this
with the loop upper limit of res->resets_num which is an unsigned
int type. There is a potential infinite loop if res->resets_num
is larger than the u8 loop counter i. Fix this by making the loop
counter the same type as res->resets_num.
Addresses-Coverity: ("Infinite loop")
Fixes: 3bca43585e22 ("media: venus: core,pm: Add handling for resets")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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Fix kerneldoc warnings in description of venus_core and venus_inst
structures
Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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msm-next pull request has a baseline with stuff from -fixes, roll
forward first.
Some simple conflicts in amdgpu, ttm and one in i915 where git gets
confused and tries to add the same function twice.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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For two of the supported sensors the stv06xx driver allocates memory which
is stored in sd->sensor_priv. This memory is freed on a disconnect, but if
the probe() fails, then it isn't freed and so this leaks memory.
Add a new probe_error() op that drivers can use to free any allocated
memory in case there was a probe failure.
Thanks to Pavel Skripkin <paskripkin@gmail.com> for discovering the cause
of the memory leak.
Reported-and-tested-by: syzbot+e7f4c64a4248a0340c37@syzkaller.appspotmail.com
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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Remove including <linux/version.h> that don't need it.
Signed-off-by: Tian Tao <tiantao6@hisilicon.com>
Signed-off-by: Zhiqi Song <songzhiqi1@huawei.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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Add support for EDIDs consisting of one EDID block.
Related to this, improve CEC physical address handling.
Clearing the EDID caused a bug since v4l2_calc_aspect_ratio() was
called with a NULL pointer.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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Only the first pad was configured, but there are 4. This causes
set_fmt to fail with -EINVAL since the passed pad is > 0.
Configure all three sink pads and the source pad.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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The /** at the start indicates that these are kernel-doc comments, but
really these are just regular comments.
Replace /** by /* to avoid a large number of warnings from kernel-doc.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Suggested-by: Michael Tretter <m.tretter@pengutronix.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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There is a error message within devm_ioremap_resource
already, so remove the dev_err call to avoid redundant
error message.
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Reviewed-by: Robert Foss <robert.foss@linaro.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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Sparse reports a warning on a cast to u8 of a 16 bits constant.
drivers/media/i2c/rdacm21.c:348:62: warning: cast truncates bits
from constant value (300a becomes a)
Even if the behaviour is intended, silence the sparse warning replacing
the cast with a bitwise & operation.
Fixes: a59f853b3b4b ("media: i2c: Add driver for RDACM21 camera module")
Reported-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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Fix the following coverity warning:
This greater-than-or-equal-to-zero comparison of an unsigned value is
always true. "opcode >= 0".
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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Building with 'make W=1' shows many warnings -Wempty-body warnings like
drivers/media/usb/dvb-usb/vp702x-fe.c: In function 'vp702x_fe_set_frontend':
drivers/media/usb/dvb-usb/vp702x-fe.c:190:46: error: suggest braces around empty body in an 'else' statement [-Werror=empty-body]
190 | deb_fe("tuning succeeded.\n");
drivers/media/usb/dvb-usb/dtt200u.c: In function 'dtt200u_rc_query':
drivers/media/usb/dvb-usb/dtt200u.c:124:58: error: suggest braces around empty body in an 'if' statement [-Werror=empty-body]
124 | deb_info("st->data: %*ph\n", 5, st->data);
drivers/media/usb/dvb-usb/m920x.c: In function 'm920x_rc_query':
drivers/media/usb/dvb-usb/m920x.c:207:58: error: suggest braces around empty body in an 'if' statement [-Werror=empty-body]
207 | deb("Unknown rc key %02x\n", rc_state[1]);
Change the empty dprintk() macros to no_printk(), which avoids this
warning and adds format string checking.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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Building with 'make W=1' shows many warnings -Wempty-body warnings like
drivers/media/common/b2c2/flexcop-misc.c: In function 'flexcop_determine_revision':
drivers/media/common/b2c2/flexcop-misc.c:35:85: error: suggest braces around empty body in an 'else' statement [-Werror=empty-body]
35 | deb_info("this FlexCop has the 6 basic main hardware pid filter.\n");
drivers/media/usb/b2c2/flexcop-usb.c: In function 'flexcop_usb_process_frame':
drivers/media/usb/b2c2/flexcop-usb.c:357:79: error: suggest braces around empty body in an 'else' statement [-Werror=empty-body]
357 | deb_ts("not ts packet %*ph\n", 4, b+2);
| ^
drivers/media/common/b2c2/flexcop-misc.c: In function 'flexcop_determine_revision':
drivers/media/common/b2c2/flexcop-misc.c:35:85: error: suggest braces around empty body in an 'else' statement [-Werror=empty-body]
35 | deb_info("this FlexCop has the 6 basic main hardware pid filter.\n");
| ^
Change the empty dprintk() macros to no_printk(), which avoids this
warning and adds format string checking.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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The Asus PN50 has 16 byte io region for the ITE8708 in its DSDT, which
causes the probe fail. So, accept larger regions.
Link: https://www.spinics.net/lists/linux-media/msg177725.html
Cc: Nikolaos Beredimas <beredim@gmail.com>
Reported-by: Michael Zimmermann <sigmaepsilon92@gmail.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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s/Hisilicon/HiSilicon/g.
It should use capital S, according to
https://www.hisilicon.com/en/terms-of-use.
Signed-off-by: Hao Fang <fanghao11@huawei.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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The zte zx platform is getting removed, so this driver is no
longer needed.
Cc: Jun Nie <jun.nie@linaro.org>
Cc: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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syzbot reported memory leak in dvb-usb. The problem was
in invalid error handling in dvb_usb_adapter_init().
for (n = 0; n < d->props.num_adapters; n++) {
....
if ((ret = dvb_usb_adapter_stream_init(adap)) ||
(ret = dvb_usb_adapter_dvb_init(adap, adapter_nrs)) ||
(ret = dvb_usb_adapter_frontend_init(adap))) {
return ret;
}
...
d->num_adapters_initialized++;
...
}
In case of error in dvb_usb_adapter_dvb_init() or
dvb_usb_adapter_dvb_init() d->num_adapters_initialized won't be
incremented, but dvb_usb_adapter_exit() relies on it:
for (n = 0; n < d->num_adapters_initialized; n++)
So, allocated objects won't be freed.
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Reported-by: syzbot+3c2be7424cea3b932b0e@syzkaller.appspotmail.com
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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Add keymaps and bindings for the simple IR (NEC) remotes used with
the MeCool KII-Pro and MeCool KIII-Pro Android STB devices.
Tested-by: Drazen Spio <drazsp@gmail.com>
Signed-off-by: Christian Hewitt <christianshewitt@gmail.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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gcc-11 warns about the prototype not exactly matching the function
definition:
drivers/media/usb/dvb-usb/dvb-usb-remote.c:363:20: error: argument 2 of type ‘u8[5]’ {aka ‘unsigned char[5]’} with mismatched bound [-Werror=array-parameter=]
363 | u8 keybuf[5], u32 *event, int *state)
| ~~~^~~~~~~~~
In file included from drivers/media/usb/dvb-usb/dvb-usb-common.h:13,
from drivers/media/usb/dvb-usb/dvb-usb-remote.c:9:
drivers/media/usb/dvb-usb/dvb-usb.h:490:65: note: previously declared as ‘u8[]’ {aka ‘unsigned char[]’}
490 | extern int dvb_usb_nec_rc_key_to_event(struct dvb_usb_device *, u8[], u32 *, int *);
| ^~~~
Fixes: 776338e121b9 ("[PATCH] dvb: Add generalized dvb-usb driver")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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An earlier commit removed a call to lgdt3306a_spectral_inversion and
omitted to remove the error return check. The check on ret is now
redundant and can be removed.
Addresses-Coverity: ("Logically dead code")
Fixes: d4a3fa6652e3 ("media: dvb-frontends: lgdt3306a.c: remove dead code")
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+huawei@kernel.org>
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The struct v4l2_subdev_format sd_fmt cannot be static since it can be
written back by the subdev. Just have it on the stack.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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pm_runtime_get_sync() will increase the runtime PM counter
even it returns an error. Thus a pairing decrement is needed
to prevent refcount leak. Fix this by replacing this API with
pm_runtime_resume_and_get(), which will not change the runtime
PM counter on error.
Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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pm_runtime_get_sync() will increase the runtime PM counter
even it returns an error. Thus a pairing decrement is needed
to prevent refcount leak. Fix this by replacing this API with
pm_runtime_resume_and_get(), which will not change the runtime
PM counter on error.
Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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The video_unregister_device already calls video_device_release,
so remove video_device_release, to avoid a double free, when removing
the module. This showed up in a repeated rmmod/insmod scenario.
Signed-off-by: Mirela Rabulea <mirela.rabulea@nxp.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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This driver's remove path calls cancel_delayed_work(). However, that
function does not wait until the work function finishes. This means
that the callback function may still be running after the driver's
remove function has finished, which would result in a use-after-free.
Fix by calling cancel_delayed_work_sync(), which ensures that
the work is properly cancelled, no longer running, and unable
to re-schedule itself.
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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This driver's remove path calls cancel_delayed_work(). However, that
function does not wait until the work function finishes. This means
that the callback function may still be running after the driver's
remove function has finished, which would result in a use-after-free.
Fix by calling cancel_delayed_work_sync(), which ensures that
the work is properly cancelled, no longer running, and unable
to re-schedule itself.
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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This driver's remove path calls cancel_delayed_work(). However, that
function does not wait until the work function finishes. This means
that the callback function may still be running after the driver's
remove function has finished, which would result in a use-after-free.
Fix by calling cancel_delayed_work_sync(), which ensures that
the work is properly cancelled, no longer running, and unable
to re-schedule itself.
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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