[PATCH] v4l/bttv: add sanity check (bug #3309)
Missing sanity check, overlay is supported for packed pixel formats only. Patch below. It's not API related btw, the bug can be triggered using the v4l2 API as well. Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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