[PATCH 13/25] media: nxp: imx8-isi: Drop unneeded v4l2_m2m_get_vq() NULL check

Frank Li Frank.li at nxp.com
Wed Oct 8 13:02:24 PDT 2025


On Wed, Oct 08, 2025 at 08:50:40PM +0300, Laurent Pinchart wrote:
> The v4l2_m2m_get_vq() function never returns NULL. The check may have
> been intended to catch invalid format types, but that's not needed as
> the V4L2 core picks the appropriate VIDIOC_S_FMT ioctl handler based on
> the format type, so the type can't be incorrect. Drop the unneeded
> return value check.
>
> Signed-off-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
> ---

Reviewed-by: Frank Li <Frank.Li at nxp.com>

>  drivers/media/platform/nxp/imx8-isi/imx8-isi-m2m.c | 2 --
>  1 file changed, 2 deletions(-)
>
> diff --git a/drivers/media/platform/nxp/imx8-isi/imx8-isi-m2m.c b/drivers/media/platform/nxp/imx8-isi/imx8-isi-m2m.c
> index 6822c2f7fc69..675f1d2b65d9 100644
> --- a/drivers/media/platform/nxp/imx8-isi/imx8-isi-m2m.c
> +++ b/drivers/media/platform/nxp/imx8-isi/imx8-isi-m2m.c
> @@ -554,8 +554,6 @@ static int mxc_isi_m2m_s_fmt_vid(struct file *file, void *fh,
>  	struct vb2_queue *vq;
>
>  	vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type);
> -	if (!vq)
> -		return -EINVAL;
>
>  	if (vb2_is_busy(vq))
>  		return -EBUSY;
> --
> Regards,
>
> Laurent Pinchart
>



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