On Wed Oct 15 10:53:33 2025 +0300, Laurent Pinchart wrote:
> The v4l2_m2m_get_vq() function never returns NULL.
>
> In the set format handler, 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.
>
> In the get format handler, the return value is not used for any purpose
> other than the NULL check, which was therefore probably intended to
> catch invalid format types. That's not needed for the same reason as in
> the set format handler.
>
> Drop the unneeded return value checks and, as the function has no side
> effect, the unneeded function call as well.
>
> Signed-off-by: Laurent Pinchart <[email protected]>
> Reviewed-by: Stefan Klug <[email protected]>
> Signed-off-by: Hans Verkuil <[email protected]>
Patch committed.
Thanks,
Hans Verkuil
drivers/media/platform/nxp/dw100/dw100.c | 7 -------
1 file changed, 7 deletions(-)
---
diff --git a/drivers/media/platform/nxp/dw100/dw100.c
b/drivers/media/platform/nxp/dw100/dw100.c
index 97744c7b7c03..035081c4223b 100644
--- a/drivers/media/platform/nxp/dw100/dw100.c
+++ b/drivers/media/platform/nxp/dw100/dw100.c
@@ -735,13 +735,8 @@ static int dw100_enum_framesizes(struct file *file, void
*priv,
static int dw100_g_fmt_vid(struct file *file, void *priv, struct v4l2_format
*f)
{
struct dw100_ctx *ctx = dw100_file2ctx(file);
- struct vb2_queue *vq;
struct dw100_q_data *q_data;
- vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type);
- if (!vq)
- return -EINVAL;
-
q_data = dw100_get_q_data(ctx, f->type);
f->fmt.pix_mp = q_data->pix_fmt;
@@ -803,8 +798,6 @@ static int dw100_s_fmt(struct dw100_ctx *ctx, struct
v4l2_format *f)
struct vb2_queue *vq;
vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type);
- if (!vq)
- return -EINVAL;
q_data = dw100_get_q_data(ctx, f->type);
if (!q_data)
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