- 05 Jun, 2019 27 commits
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Jae Hyun Yoo authored
Currently, this driver calls clk_prepare and clk_unprepare from interrupt context too but these should be called from sleepable context only. To fix this issue, this commit splits out clk_enable/disable and clk_prepare/unprepare, and it places clk_prepare/unprepare calls into the module probe/remove function. Signed-off-by:
Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com> Reviewed-by:
Eddie James <eajames@linux.ibm.com> Signed-off-by:
Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by:
Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Jae Hyun Yoo authored
Video engine clock control can be double disabled and eventually it causes a kernel warning with stack dump printing out like below: [ 515.540498] ------------[ cut here ]------------ [ 515.545174] WARNING: CPU: 0 PID: 1310 at drivers/clk/clk.c:684 clk_core_unprepare+0x13c/0x170 [ 515.553806] vclk-gate already unprepared [ 515.557841] CPU: 0 PID: 1310 Comm: obmc-ikvm Tainted: G W 5.0.6-df66fbc97853fbba90a0bfa44de32f3d5f7602b4 #1 [ 515.568973] Hardware name: Generic DT based system [ 515.573777] Backtrace: [ 515.576272] [<80107cdc>] (dump_backtrace) from [<80107f10>] (show_stack+0x20/0x24) [ 515.583930] r7:803a5614 r6:00000009 r5:00000000 r4:9d88fe1c [ 515.589712] [<80107ef0>] (show_stack) from [<80690184>] (dump_stack+0x20/0x28) [ 515.597053] [<80690164>] (dump_stack) from [<80116044>] (__warn.part.3+0xb4/0xdc) [ 515.604557] [<80115f90>] (__warn.part.3) from [<801160d8>] (warn_slowpath_fmt+0x6c/0x90) [ 515.612734] r6:000002ac r5:8080befc r4:80a07008 [ 515.617463] [<80116070>] (warn_slowpath_fmt) from [<803a5614>] (clk_core_unprepare+0x13c/0x170) [ 515.626167] r3:8080cdf4 r2:8080bfc0 [ 515.629834] r7:98d682a8 r6:9d8a9200 r5:9e5151a0 r4:97abd620 [ 515.635530] [<803a54d8>] (clk_core_unprepare) from [<803a76a4>] (clk_unprepare+0x34/0x3c) [ 515.643812] r5:9e5151a0 r4:97abd620 [ 515.647529] [<803a7670>] (clk_unprepare) from [<804f36ec>] (aspeed_video_off+0x38/0x50) [ 515.655539] r5:9e5151a0 r4:9e504000 [ 515.659242] [<804f36b4>] (aspeed_video_off) from [<804f4358>] (aspeed_video_release+0x90/0x114) [ 515.668036] r5:9e5044b0 r4:9e504000 [ 515.671643] [<804f42c8>] (aspeed_video_release) from [<804d302c>] (v4l2_release+0xd4/0xe8) [ 515.679999] r7:98d682a8 r6:9d087810 r5:9d8a9200 r4:9e504318 [ 515.685695] [<804d2f58>] (v4l2_release) from [<80236454>] (__fput+0x98/0x1c4) [ 515.692914] r5:9e51b608 r4:9d8a9200 [ 515.696597] [<802363bc>] (__fput) from [<802365e8>] (____fput+0x18/0x1c) [ 515.703315] r9:80a0700c r8:801011e4 r7:00000000 r6:80a64b9c r5:9d8e35a0 r4:9d8e38dc [ 515.711167] [<802365d0>] (____fput) from [<80131ca4>] (task_work_run+0x7c/0xa0) [ 515.718596] [<80131c28>] (task_work_run) from [<80106884>] (do_work_pending+0x4a8/0x578) [ 515.726777] r7:801011e4 r6:80a07008 r5:9d88ffb0 r4:ffffe000 [ 515.732466] [<801063dc>] (do_work_pending) from [<8010106c>] (slow_work_pending+0xc/0x20) [ 515.740727] Exception stack(0x9d88ffb0 to 0x9d88fff8) [ 515.745840] ffa0: 00000000 76f18094 00000000 00000000 [ 515.754122] ffc0: 00000007 00176778 7eda4c20 00000006 00000000 00000000 48e20fa4 00000000 [ 515.762386] ffe0: 00000002 7eda4b08 00000000 48f91efc 80000010 00000007 [ 515.769097] r10:00000000 r9:9d88e000 r8:801011e4 r7:00000006 r6:7eda4c20 r5:00176778 [ 515.777006] r4:00000007 [ 515.779558] ---[ end trace 12c04aadef8afbbb ]--- [ 515.784176] ------------[ cut here ]------------ [ 515.788817] WARNING: CPU: 0 PID: 1310 at drivers/clk/clk.c:825 clk_core_disable+0x18c/0x204 [ 515.797161] eclk-gate already disabled [ 515.800916] CPU: 0 PID: 1310 Comm: obmc-ikvm Tainted: G W 5.0.6-df66fbc97853fbba90a0bfa44de32f3d5f7602b4 #1 [ 515.811945] Hardware name: Generic DT based system [ 515.816730] Backtrace: [ 515.819210] [<80107cdc>] (dump_backtrace) from [<80107f10>] (show_stack+0x20/0x24) [ 515.826782] r7:803a5900 r6:00000009 r5:00000000 r4:9d88fe04 [ 515.832454] [<80107ef0>] (show_stack) from [<80690184>] (dump_stack+0x20/0x28) [ 515.839687] [<80690164>] (dump_stack) from [<80116044>] (__warn.part.3+0xb4/0xdc) [ 515.847170] [<80115f90>] (__warn.part.3) from [<801160d8>] (warn_slowpath_fmt+0x6c/0x90) [ 515.855247] r6:00000339 r5:8080befc r4:80a07008 [ 515.859868] [<80116070>] (warn_slowpath_fmt) from [<803a5900>] (clk_core_disable+0x18c/0x204) [ 515.868385] r3:8080cdd0 r2:8080c00c [ 515.871957] r7:98d682a8 r6:9d8a9200 r5:97abd560 r4:97abd560 [ 515.877615] [<803a5774>] (clk_core_disable) from [<803a59a0>] (clk_core_disable_lock+0x28/0x34) [ 515.886301] r7:98d682a8 r6:9d8a9200 r5:97abd560 r4:a0000013 [ 515.891960] [<803a5978>] (clk_core_disable_lock) from [<803a7714>] (clk_disable+0x2c/0x30) [ 515.900216] r5:9e5151a0 r4:9e515f60 [ 515.903816] [<803a76e8>] (clk_disable) from [<804f36f8>] (aspeed_video_off+0x44/0x50) [ 515.911656] [<804f36b4>] (aspeed_video_off) from [<804f4358>] (aspeed_video_release+0x90/0x114) [ 515.920341] r5:9e5044b0 r4:9e504000 [ 515.923921] [<804f42c8>] (aspeed_video_release) from [<804d302c>] (v4l2_release+0xd4/0xe8) [ 515.932184] r7:98d682a8 r6:9d087810 r5:9d8a9200 r4:9e504318 [ 515.937851] [<804d2f58>] (v4l2_release) from [<80236454>] (__fput+0x98/0x1c4) [ 515.944980] r5:9e51b608 r4:9d8a9200 [ 515.948559] [<802363bc>] (__fput) from [<802365e8>] (____fput+0x18/0x1c) [ 515.955257] r9:80a0700c r8:801011e4 r7:00000000 r6:80a64b9c r5:9d8e35a0 r4:9d8e38dc [ 515.963008] [<802365d0>] (____fput) from [<80131ca4>] (task_work_run+0x7c/0xa0) [ 515.970333] [<80131c28>] (task_work_run) from [<80106884>] (do_work_pending+0x4a8/0x578) [ 515.978421] r7:801011e4 r6:80a07008 r5:9d88ffb0 r4:ffffe000 [ 515.984086] [<801063dc>] (do_work_pending) from [<8010106c>] (slow_work_pending+0xc/0x20) [ 515.992247] Exception stack(0x9d88ffb0 to 0x9d88fff8) [ 515.997296] ffa0: 00000000 76f18094 00000000 00000000 [ 516.005473] ffc0: 00000007 00176778 7eda4c20 00000006 00000000 00000000 48e20fa4 00000000 [ 516.013642] ffe0: 00000002 7eda4b08 00000000 48f91efc 80000010 00000007 [ 516.020257] r10:00000000 r9:9d88e000 r8:801011e4 r7:00000006 r6:7eda4c20 r5:00176778 [ 516.028072] r4:00000007 [ 516.030606] ---[ end trace 12c04aadef8afbbc ]--- To prevent this issue, this commit adds clock status checking logic into the Aspeed video engine driver. Signed-off-by:
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Fabien Dessenne authored
Manage the irq = 0 case, where we shall return an error. Fixes: b5b5a27b ("media: stm32-dcmi: return appropriate error codes during probe") Signed-off-by:
Fabien Dessenne <fabien.dessenne@st.com> Reported-by:
Pavel Machek <pavel@ucw.cz> Acked-by:
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Hans Verkuil authored
This patch shouldn't have been included in the pull request as it adds a non-standard raw mode that is for debugging only. So revert commit ead14a70. Signed-off-by:
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Shobhit Kukreti authored
fixed the warning in the files below drivers/media/platform/pxa_camera.c:1391:2-3: Unneeded semicolon drivers/media/platform/qcom/venus/vdec_ctrls.c:78:2-3: Unneeded semicolon drivers/media/platform/sti/c8sectpfe/c8sectpfe-dvb.c:146:3-4: Unneeded semicolon Signed-off-by:
Shobhit Kukreti <shobhitkukreti@gmail.com> Signed-off-by:
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Colin Ian King authored
The assigment of FB_VMODE_NONINTERLACE to var->vmode should be a bit-wise or of FB_VMODE_NONINTERLACE instead of an assignment, otherwise the previous clearing of the FB_VMODE_MASK bits of var->vmode makes no sense and is redundant. Addresses-Coverity: ("Unused value") Fixes: ad4e02d5 ("[media] vivid: add a simple framebuffer device for overlay testing") Signed-off-by:Colin Ian King <colin.king@canonical.com> Signed-off-by:
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Yunfei Dong authored
MT8183 will use a multi-planar format backed by a single buffer. Adapt the existing code to be able to handle such frames instead of assuming each frame is backed by two buffers. Co-developed-by:
Alexandre Courbot <acourbot@chromium.org> [acourbot: refactor, cleanup and split] Signed-off-by:
Yunfei Dong <yunfei.dong@mediatek.com> Signed-off-by:
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Alexandre Courbot authored
Formats are read-only internal memory structures, so make them const. Signed-off-by:
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Alexandre Courbot authored
Replace the GPLv2 boilerplate with the corresponding SPDX reference. Signed-off-by:
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Fabio Estevam authored
Checkpatch reports an extra blank line, so remove such unneeded line. Signed-off-by:
Fabio Estevam <festevam@gmail.com> Signed-off-by:
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Fabio Estevam authored
There is no need for initializing the 'ret' variable as it will be assigned at: ret = mipi_csis_parse_dt(pdev, state); Remove the unneeded initialization. Signed-off-by:
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Fabio Estevam authored
Currently the return value from clk_bulk_prepare_enable() is checked, but it is not propagate it in the case of failure. Fix it and also move the error message to the caller of mipi_csis_clk_enable(). Signed-off-by:
Rui Miguel Silva <rmfrfs@gmail.com> Signed-off-by:
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André Almeida authored
Change the way subdevices check if the stream is running. Verify the stream pointer instead of src_frame. This makes easier to get rid of the void* and u8* that points to frames in the subdevices structs. Remove checks that s_stream does on subdevices. They are redundant since the Media Controller Framework doesn't allow two streaming on the same media pipeline at the same time. Signed-off-by:
André Almeida <andrealmeid@collabora.com> Acked-by:
Helen Koike <helen.koike@collabora.com> Signed-off-by:
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Stanimir Varbanov authored
This changes v4l2_pix_format and v4l2_plane_pix_format sizeimage field description to allow v4l clients to set bigger image size in case of variable length compressed data. Presently s5p-mfc and mtk-vcodec codec drivers use that. Lets make it obvious in the documentation. Signed-off-by:
Stanimir Varbanov <stanimir.varbanov@linaro.org> Signed-off-by:
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Marc Gonzalez authored
Fix minor typos in the DVB demux documentation. Signed-off-by:
Marc Gonzalez <marc.w.gonzalez@free.fr> Signed-off-by:
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Mauro Carvalho Chehab authored
There are three headers at DVB that should not be used on future projects: audio.h, osd.h and video.h. While this is already clear at the docs, make clear also at the headers that those files should not be used on future drivers. Signed-off-by: -
Masahiro Yamada authored
Linux kernel tolerates C++ style comments these days. Actually, the SPDX License tags for .c files start with //. On the other hand, uapi headers are written in more strict C, where the C++ comment style is forbidden. [mchehab+samsung@kernel.org: fix a checkpatch --strict warning] Signed-off-by:
Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by:
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Hans Verkuil authored
Use the new helper functions for the try_de/decoder_cmd ioctls. Signed-off-by:
Tomasz Figa <tfiga@chromium.org> Signed-off-by:
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Hans Verkuil authored
Most if not all codecs will need to implement these ioctls and it is expected to be the same for all codecs. So add this to the core v4l2-mem2mem framework so that this code can easily be reused. Signed-off-by:
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Hans Verkuil authored
Instead of filling in the struct v4l2_capability device_caps field, fill in the struct video_device device_caps field. That way the V4L2 core knows what the capabilities of the video device are. But this only really works if all drivers use this, so convert all staging/media drivers in this patch. Signed-off-by:
Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by:
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Hans Verkuil authored
Instead of filling in the struct v4l2_capability device_caps field, fill in the struct video_device device_caps field. That way the V4L2 core knows what the capabilities of the video device are. But this only really works if all drivers use this, so convert this driver accordingly. Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by:
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Hans Verkuil authored
Instead of filling in the struct v4l2_capability device_caps field, fill in the struct video_device device_caps field. That way the V4L2 core knows what the capabilities of the video device are. But this only really works if all drivers use this, so convert this UVC gadget driver. Signed-off-by:
Felipe Balbi <felipe.balbi@linux.intel.com> Signed-off-by:
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Hans Verkuil authored
Instead of filling in the struct v4l2_capability device_caps field, fill in the struct video_device device_caps field. That way the V4L2 core knows what the capabilities of the video device are. But this only really works if all drivers use this, so convert this SDR driver in this patch. Signed-off-by:
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Hans Verkuil authored
Instead of filling in the struct v4l2_capability device_caps field, fill in the struct video_device device_caps field. That way the V4L2 core knows what the capabilities of the video device are. But this only really works if all drivers use this, so convert all usb drivers in this patch. Signed-off-by:
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Hans Verkuil authored
Instead of filling in the struct v4l2_capability device_caps field, fill in the struct video_device device_caps field. That way the V4L2 core knows what the capabilities of the video device are. But this only really works if all drivers use this, so convert all radio drivers in this patch. Signed-off-by:
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Boris Brezillon authored
Support for multiplanar and singleplanar formats is mutually exclusive, at least in practice. In our attempt to unify support for support for mplane and !mplane in v4l, let's get rid of the ->vidioc_enum_fmt_{vid,out}_cap_mplane() hooks and call ->vidioc_enum_fmt_{vid,out}_cap() instead. Signed-off-by:Boris Brezillon <boris.brezillon@collabora.com> Reviewed-by:
Sylwester Nawrocki <s.nawrocki@samsung.com> [hverkuil-cisco@xs4all.nl: fix typos: pirv -> priv and prov -> priv] Signed-off-by:
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Boris Brezillon authored
This is needed if we want the core to be able to check _MPLANE support without having to call the ->vidioc_querycap() hook. Signed-off-by:
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- 03 Jun, 2019 6 commits
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Maxime Ripard authored
Commit 8df39e16 ("media: dt-bindings: media: Add vendor prefix for allegro") introduced a new devicetree binding vendors, however with an improper syntax making the resulting YAML impossible to parse. Let's fix this. Fixes: 8df39e16 ("media: dt-bindings: media: Add vendor prefix for allegro") Signed-off-by:
Maxime Ripard <maxime.ripard@bootlin.com> Signed-off-by:
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Dan Carpenter authored
The imx_media_pipeline_pad() function return NULL pointers on error, it never returns error pointers. Fixes: 3ef46bc9 ("media: staging/imx: Improve pipeline searching") Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
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Neil Armstrong authored
With fast_io enabled, spinlock_irq is used for read/write operations, thus leading to : BUG: sleeping function called from invalid context at [snip]/ao-cec-g12a.c:379 in_atomic(): 1, irqs_disabled(): 128, pid: 1451, name: irq/14-ff800280 [snip] Call trace: dump_backtrace+0x0/0x180 show_stack+0x14/0x1c dump_stack+0xa8/0xe0 ___might_sleep+0xf4/0x104 __might_sleep+0x4c/0x80 meson_ao_cec_g12a_read+0x7c/0x164 regmap_read+0x16c/0x1b0 meson_ao_cec_g12a_irq_thread+0xcc/0x200 irq_thread_fn+0x2c/0x60 irq_thread+0x14c/0x1fc kthread+0x11c/0x12c ret_from_fork+0x10/0x18 Simply remove fast_io to use mutexes instead. Fixes: b7778c46 ("media: platform: meson: Add Amlogic Meson G12A AO CEC Controller driver") Signed-off-by:
Neil Armstrong <narmstrong@baylibre.com> Signed-off-by:
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Colin Ian King authored
The variable err is assigned with a value that is never read and it is re-assigned a new value later on. The assignment is redundant and can be removed. Addresses-Coverity: ("Unused value") Signed-off-by: -
Hans Verkuil authored
This patch fixes a coccinelle warning and includes ktime.h instead of timekeeping.h. The first includes the latter, but the latter doesn't exist before 3.17, causing problems for our compat build. It's easier to just use ktime.h instead. coccinelle warnings: (new ones prefixed by >>) >> drivers/media/usb/dvb-usb/cxusb-analog.c:1498:41-42: WARNING: Use ARRAY_SIZE Signed-off-by:
kbuild test robot <lkp@intel.com> Signed-off-by:
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Kefeng Wang authored
X-Originating-IP: [10.175.113.25] X-CFilter-Loop: Reflected The fm_v4l2_init_video_device() forget to unregister v4l2/video device in the error path, it could lead to UAF issue, eg, BUG: KASAN: use-after-free in atomic64_read include/asm-generic/atomic-instrumented.h:836 [inline] BUG: KASAN: use-after-free in atomic_long_read include/asm-generic/atomic-long.h:28 [inline] BUG: KASAN: use-after-free in __mutex_unlock_slowpath+0x92/0x690 kernel/locking/mutex.c:1206 Read of size 8 at addr ffff8881e84a7c70 by task v4l_id/3659 CPU: 1 PID: 3659 Comm: v4l_id Not tainted 5.1.0 #8 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0xa9/0x10e lib/dump_stack.c:113 print_address_description+0x65/0x270 mm/kasan/report.c:187 kasan_report+0x149/0x18d mm/kasan/report.c:317 atomic64_read include/asm-generic/atomic-instrumented.h:836 [inline] atomic_long_read include/asm-generic/atomic-long.h:28 [inline] __mutex_unlock_slowpath+0x92/0x690 kernel/locking/mutex.c:1206 fm_v4l2_fops_open+0xac/0x120 [fm_drv] v4l2_open+0x191/0x390 [videodev] chrdev_open+0x20d/0x570 fs/char_dev.c:417 do_dentry_open+0x700/0xf30 fs/open.c:777 do_last fs/namei.c:3416 [inline] path_openat+0x7c4/0x2a90 fs/namei.c:3532 do_filp_open+0x1a5/0x2b0 fs/namei.c:3563 do_sys_open+0x302/0x490 fs/open.c:1069 do_syscall_64+0x9f/0x450 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f8180c17c8e ... Allocated by task 3642: set_track mm/kasan/common.c:87 [inline] __kasan_kmalloc.constprop.3+0xa0/0xd0 mm/kasan/common.c:497 fm_drv_init+0x13/0x1000 [fm_drv] do_one_initcall+0xbc/0x47d init/main.c:901 do_init_module+0x1b5/0x547 kernel/module.c:3456 load_module+0x6405/0x8c10 kernel/module.c:3804 __do_sys_finit_module+0x162/0x190 kernel/module.c:3898 do_syscall_64+0x9f/0x450 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe Freed by task 3642: set_track mm/kasan/common.c:87 [inline] __kasan_slab_free+0x130/0x180 mm/kasan/common.c:459 slab_free_hook mm/slub.c:1429 [inline] slab_free_freelist_hook mm/slub.c:1456 [inline] slab_free mm/slub.c:3003 [inline] kfree+0xe1/0x270 mm/slub.c:3958 fm_drv_init+0x1e6/0x1000 [fm_drv] do_one_initcall+0xbc/0x47d init/main.c:901 do_init_module+0x1b5/0x547 kernel/module.c:3456 load_module+0x6405/0x8c10 kernel/module.c:3804 __do_sys_finit_module+0x162/0x190 kernel/module.c:3898 do_syscall_64+0x9f/0x450 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe Add relevant unregister functions to fix it. Cc: Hans Verkuil <hans.verkuil@cisco.com> Reported-by:
Hulk Robot <hulkci@huawei.com> Signed-off-by:
Kefeng Wang <wangkefeng.wang@huawei.com> Signed-off-by:
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- 29 May, 2019 7 commits
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Christophe JAILLET authored
'res' is reassigned several times in the function and if we 'goto error_unmap', its value is not the returned value of 'request_mem_region()' anymore. Introduce a new 'struct resource *' variable (i.e. res2) to keep a pointer to the right resource, if needed in the error handling path. Fixes: 4b4eda00 ("Staging: media: Unmap and release region obtained by ioremap_nocache") Signed-off-by:
Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by:
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Arvind Yadav authored
platform_device_id are not supposed to change at runtime. All functions working with platform_device_id provided by <linux/platform_device.h> work with const platform_device_id. So mark the non-const structs as const. Signed-off-by:
Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by:
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Diwakar Sharma authored
Checkpatch reported warnings for use of embedded function names. Use __func__ instead of embedded function names. [mchehab+samsung@kernel.org: rebased on the top of upstream] Signed-off-by:
Diwakar Sharma <sharmalxmail@gmail.com> Signed-off-by:
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Sakari Ailus authored
video_unregister_device() can be called on a never or an already unregistered device. Drop the redundant check. Signed-off-by:
Sakari Ailus <sakari.ailus@linux.intel.com> Reviewed-by:
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Sakari Ailus authored
devm functions are fine for managing resources that are directly related to the device at hand and that have no other dependencies. However, a process holding a file handle to a device created by a driver for a device may result in the file handle left behind after the device is long gone. This will result in accessing released (and potentially reallocated) memory. Instead, manage the memory resources in the driver. Releasing the resources can be later on bound to e.g. by releasing a reference. Signed-off-by:
Hans Verkuil <hans.verkuil@cisco.com> Reviewed-by:
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Arushi Singhal authored
This patch replaces bit shifting on 1 with the BIT(x) macro. This was done with coccinelle: @@ constant c; @@ -1 << c +BIT(c) [mchehab+samsung@kernel.org: rebase on the top of upstream] Signed-off-by:
Arushi Singhal <arushisinghal19971997@gmail.com> Signed-off-by:
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Shailendra Verma authored
Fix to avoid possible memory leak if the decoder initialization got failed.Free the allocated memory for file handle object before return in case decoder initialization fails. Signed-off-by:
Shailendra Verma <shailendra.v@samsung.com> Signed-off-by:
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