fix some issues reported by Dan,
1. fix some signedness bug
2. don't use u32 as function return value
3. prevent a divide by zero bug
4. Just return zero on success, don't return a known parameter
5. check the validity of some variables
6. reset buffer state when return buffers
7. make sure the ALIGN won't wrap to zero
Signed-off-by: Ming Qian <ming.qian@nxp.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
vpu_v4l2.c implements the v4l2 m2m driver methods.
vpu_helpers.c implements the common helper functions
vpu_color.c converts the v4l2 colorspace with
the VUI parameters that specified by ITU-T | ISO/IEC
Signed-off-by: Ming Qian <ming.qian@nxp.com>
Signed-off-by: Shijie Qin <shijie.qin@nxp.com>
Signed-off-by: Zhou Peng <eagle.zhou@nxp.com>
Reported-by: kernel test robot <lkp@intel.com>
Tested-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Ming Qian