Hans Verkuil bec5fe171f media: v4l2-core: hold videodev_lock until dev reg, finishes ... commit 1ed4477f2e upstream. After the new V4L2 device node was registered, some additional initialization was done before the device node was marked as 'registered'. During the time between creating the device node and marking it as 'registered' it was possible to open the device node, which would return -ENODEV since the 'registered' flag was not yet set. Hold the videodev_lock mutex from just before the device node is registered until the 'registered' flag is set. Since v4l2_open will take the same lock, it will wait until this registration process is finished. This resolves this race condition. Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com> Cc: <stable@vger.kernel.org> # for vi4.18 and up Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2024-06-16 13:28:50 +02:00
..
cec	media: cec: cec-api: add locking in cec_release()	2024-06-16 13:28:44 +02:00
common	media: v4l2-tpg: fix some memleaks in tpg_alloc	2024-03-26 18:22:19 -04:00
dvb-core	media: edia: dvbdev: fix a use-after-free	2024-03-26 18:22:19 -04:00
dvb-frontends	media: mxl5xx: Move xpt structures off stack	2024-06-16 13:28:50 +02:00
firewire	media: firewire: firedtv-avc: fix a buffer overflow in avc_ca_pmt()	2021-11-06 13:59:45 +01:00
i2c	media: tc358743: register v4l2 async device only after successful setup	2024-03-26 18:22:19 -04:00
mc	media: mc: mark the media devnode as registered from the, start	2024-06-16 13:28:50 +02:00
mmc	…
pci	media: ngene: Add dvb_ca_en50221_init return value check	2024-06-16 13:28:39 +02:00
platform	media: rockchip: rga: fix swizzling for RGB formats	2024-02-23 08:25:00 +01:00
radio	media: radio-shark2: Avoid led_names truncations	2024-06-16 13:28:39 +02:00
rc	media: sharp: fix sharp encoding	2023-11-28 16:50:21 +00:00
spi	media: cxd2880-spi: Fix a null pointer dereference on error handling path	2021-11-17 09:48:35 +01:00
tuners	media: xc4000: Fix atomicity violation in xc4000_get_frequency	2024-04-13 12:51:22 +02:00
usb	media: stk1160: fix bounds checking in stk1160_copy_video()	2024-06-16 13:28:44 +02:00
v4l2-core	media: v4l2-core: hold videodev_lock until dev reg, finishes	2024-06-16 13:28:50 +02:00
Kconfig	…
Makefile	…