6.5-stable review patch. If anyone has any objections, please let me know.
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From: Ming Qian ming.qian@nxp.com
[ Upstream commit 79d3bafaecc13bccab1ebbd28a15e669c5a4cdaf ]
null-checking of a pointor is suggested before dereferencing it
Fixes: 9f599f351e86 ("media: amphion: add vpu core driver") Reviewed-by: Nicolas Dufresne nicolas.dufresne@collabora.com Signed-off-by: Ming Qian ming.qian@nxp.com Signed-off-by: Hans Verkuil hverkuil-cisco@xs4all.nl Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/media/platform/amphion/venc.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/media/platform/amphion/venc.c b/drivers/media/platform/amphion/venc.c index 58480e2755ec4..4eb57d793a9c0 100644 --- a/drivers/media/platform/amphion/venc.c +++ b/drivers/media/platform/amphion/venc.c @@ -268,7 +268,7 @@ static int venc_g_parm(struct file *file, void *fh, struct v4l2_streamparm *parm { struct vpu_inst *inst = to_inst(file); struct venc_t *venc = inst->priv; - struct v4l2_fract *timeperframe = &parm->parm.capture.timeperframe; + struct v4l2_fract *timeperframe;
if (!parm) return -EINVAL; @@ -279,6 +279,7 @@ static int venc_g_parm(struct file *file, void *fh, struct v4l2_streamparm *parm if (!vpu_helper_check_type(inst, parm->type)) return -EINVAL;
+ timeperframe = &parm->parm.capture.timeperframe; parm->parm.capture.capability = V4L2_CAP_TIMEPERFRAME; parm->parm.capture.readbuffers = 0; timeperframe->numerator = venc->params.frame_rate.numerator; @@ -291,7 +292,7 @@ static int venc_s_parm(struct file *file, void *fh, struct v4l2_streamparm *parm { struct vpu_inst *inst = to_inst(file); struct venc_t *venc = inst->priv; - struct v4l2_fract *timeperframe = &parm->parm.capture.timeperframe; + struct v4l2_fract *timeperframe; unsigned long n, d;
if (!parm) @@ -303,6 +304,7 @@ static int venc_s_parm(struct file *file, void *fh, struct v4l2_streamparm *parm if (!vpu_helper_check_type(inst, parm->type)) return -EINVAL;
+ timeperframe = &parm->parm.capture.timeperframe; if (!timeperframe->numerator) timeperframe->numerator = venc->params.frame_rate.numerator; if (!timeperframe->denominator)