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media: atomisp: check before deference asd variable

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The asd->isp was referenced before checking if asd is not
NULL.

This fixes this warning:

	../drivers/staging/media/atomisp/pci/atomisp_cmd.c:5548 atomisp_set_fmt_to_snr() warn: variable dereferenced before check 'asd' (see line 5540)

While here, avoid getting the pipe pointer twice.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Mauro Carvalho Chehab 2021-11-10 12:59:11 +00:00
parent e5e59f8184
commit 71665d8162
1 changed files with 4 additions and 2 deletions
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6
drivers/staging/media/atomisp/pci/atomisp_cmd.c
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@ -5525,8 +5525,8 @@ static int atomisp_set_fmt_to_snr(struct video_device *vdev,
unsigned int padding_w, unsigned int padding_h,
unsigned int dvs_env_w, unsigned int dvs_env_h)
{
struct atomisp_sub_device *asd = atomisp_to_video_pipe(vdev)->asd;
struct atomisp_video_pipe *pipe = atomisp_to_video_pipe(vdev);
struct atomisp_sub_device *asd = pipe->asd;
const struct atomisp_format_bridge *format;
struct v4l2_subdev_pad_config pad_cfg;
struct v4l2_subdev_state pad_state = {
@ -5537,7 +5537,7 @@ static int atomisp_set_fmt_to_snr(struct video_device *vdev,
};
struct v4l2_mbus_framefmt *ffmt = &vformat.format;
struct v4l2_mbus_framefmt *req_ffmt;
struct atomisp_device *isp = asd->isp;
struct atomisp_device *isp;
struct atomisp_input_stream_info *stream_info =
(struct atomisp_input_stream_info *)ffmt->reserved;
u16 stream_index = ATOMISP_INPUT_STREAM_GENERAL;
@ -5551,6 +5551,8 @@ static int atomisp_set_fmt_to_snr(struct video_device *vdev,
return -EINVAL;
}
isp = asd->isp;
v4l2_fh_init(&fh.vfh, vdev);
stream_index = atomisp_source_pad_to_stream_id(asd, source_pad);