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linux-stable/drivers/media
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Hans de Goede 6e1c9bc9ae media: i2c: ov8865: Fix lockdep error 
ov8865_state_init() calls ov8865_state_mipi_configure() which uses
__v4l2_ctrl_s_ctrl[_int64](). This means that sensor->mutex (which
is also sensor->ctrls.handler.lock) must be locked before calling
ov8865_state_init().

Note ov8865_state_mipi_configure() is also used in other places where
the lock is already held so it cannot be changed itself.

This fixes the following lockdep kernel WARN:

[   13.233421] WARNING: CPU: 0 PID: 8 at drivers/media/v4l2-core/v4l2-ctrls-api.c:833 __v4l2_ctrl_s_ctrl+0x4d/0x60 [videodev]
...
[   13.234063] Call Trace:
[   13.234074]  ov8865_state_configure+0x98b/0xc00 [ov8865]
[   13.234095]  ov8865_probe+0x4b1/0x54c [ov8865]
[   13.234117]  i2c_device_probe+0x13c/0x2d0

Fixes: 11c0d8fdcc ("media: i2c: Add support for the OV8865 image sensor")
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2021-11-30 10:51:55 +01:00
..
cec media: CEC: keep related menu entries together 2021-10-05 09:39:32 +02:00
common media: videobuf2: Fix the size printk format 2021-11-15 08:11:31 +00:00
dvb-core media: dvb-core: dvb_frontend: address some clang warnings 2021-11-29 10:15:04 +01:00
dvb-frontends media: si21xx: report eventual errors at set_frontend 2021-11-29 13:23:14 +01:00
firewire media: firewire: firedtv-avc: fix a buffer overflow in avc_ca_pmt() 2021-09-30 10:07:54 +02:00
i2c media: i2c: ov8865: Fix lockdep error 2021-11-30 10:51:55 +01:00
mc media: mc: drop an unused debug function 2021-11-29 10:15:04 +01:00
mmc
pci media: ipu3-cio2: Add link freq for INT33BE entry 2021-11-30 10:51:16 +01:00
platform media: mtk-mdp: address a clang warning 2021-11-29 13:23:25 +01:00
radio media: radio-si476x: drop a container_of() abstraction macro 2021-11-29 13:23:14 +01:00
rc media: redrat3: fix control-message timeouts 2021-11-19 06:04:16 +00:00
spi media: cxd2880-spi: Fix a null pointer dereference on error handling path 2021-09-30 10:07:40 +02:00
test-drivers media: vidtv: move kfree(dvb) to vidtv_bridge_dev_release() 2021-10-19 08:08:19 +01:00
tuners media: mxl5005s: drop some dead code 2021-11-29 13:23:25 +01:00
usb media: au0828-i2c: drop a duplicated function 2021-11-29 13:23:14 +01:00
v4l2-core media: Add VP9 v4l2 library 2021-11-22 07:47:13 +00:00
Kconfig media: correct MEDIA_TEST_SUPPORT help text 2021-11-15 08:12:06 +00:00
Makefile