Backport of "v4l2videodec: return right type for drain." into 1.16
Backport of !237 (merged) "v4l2videodec: return right type for drain.".
Commits:
- f49d610e v4l2videodec: Fix drain() function return type
Backport of !237 (merged) "v4l2videodec: return right type for drain.".
Commits: