media: v4l: subdev: Return NULL from pad access functions on error

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Return NULL from sub-device pad state access functions
(v4l2_subdev_state_get_{format,crop,compose}) for non-existent pads. While
this behaviour differs from older set of pad state information access
functions, we've had a WARN_ON() there for a long time and callers also do
validate the pad index nowadays. Therefore problems are not expected.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

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Sakari Ailus 2023-10-25 12:22:56 +02:00 • committed by Mauro Carvalho Chehab

parent 34dfd1dd52

commit 3591c53ae9

1 changed files with 6 additions and 30 deletions

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

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