media: v4l: Safely to call v4l2_subdev_cleanup on an uninitialised subdev

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Graciously handle an uninitialised (but still zeroed) sub-device in
v4l2_subdev_cleanup(). The list_empty() check there is unnecessary, too,
so replace that by cheking whether the lists's next field is NULL.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>

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Sakari Ailus 2023-12-07 12:00:02 +02:00 • committed by Hans Verkuil

parent fb16c04a53

commit ab8d7194ac

1 changed files with 2 additions and 1 deletions

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drivers/media/v4l2-core/v4l2-subdev.c

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