2019-06-17 16:31:18

by André Almeida

[permalink] [raw]
Subject: [PATCH] media: vimc: cap: check v4l2_fill_pixfmt return value

v4l2_fill_pixfmt() returns -EINVAL if the pixelformat used as parameter is
invalid or if the user is trying to use a multiplanar format with the
singleplanar API. Currently, the vimc_cap_try_fmt_vid_cap() returns such
value, but vimc_cap_s_fmt_vid_cap() is ignoring it. Fix that and returns
an error value if vimc_cap_try_fmt_vid_cap() has failed.

Signed-off-by: André Almeida <[email protected]>
Suggested-by: Helen Koike <[email protected]>
---
Hello,

This commit was suggest by Helen at "[v3,05/14] media: vimc: cap:
refactor singleplanar as a subset of multiplanar"

drivers/media/platform/vimc/vimc-capture.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/media/platform/vimc/vimc-capture.c b/drivers/media/platform/vimc/vimc-capture.c
index 946dc0908566..664855708fdf 100644
--- a/drivers/media/platform/vimc/vimc-capture.c
+++ b/drivers/media/platform/vimc/vimc-capture.c
@@ -142,12 +142,15 @@ static int vimc_cap_s_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
struct vimc_cap_device *vcap = video_drvdata(file);
+ int ret;

/* Do not change the format while stream is on */
if (vb2_is_busy(&vcap->queue))
return -EBUSY;

- vimc_cap_try_fmt_vid_cap(file, priv, f);
+ ret = vimc_cap_try_fmt_vid_cap(file, priv, f);
+ if (ret)
+ return ret;

dev_dbg(vcap->dev, "%s: format update: "
"old:%dx%d (0x%x, %d, %d, %d, %d) "
--
2.22.0