VPU firmware has a bug and may return invalid buffer index for
some vp9 videos. Check the buffer indexes before accessing the
buffer.
Signed-off-by: NWu-Cheng Li <wuchengli@chromium.org>
Acked-by: NTiffany Lin <Tiffany.lin@mediatek.com>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>