diff options
| author | Ondrej Jirman <megous@megous.com> | 2021-09-08 12:56:09 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+huawei@kernel.org> | 2021-09-30 10:07:59 +0200 |
| commit | 8ed852834683ebe064157e069af8dfb41cad6403 (patch) | |
| tree | 2eaf5aa0cba12d44e270d34b6ee606809e524738 /drivers/media/platform/sunxi/sun6i-csi/sun6i_video.c | |
| parent | 6d0d779b212c27293d9ccb4da092ff0ccb6efa39 (diff) | |
media: sun6i-csi: Allow the video device to be open multiple times
Previously it was possible, but a recent fix for uninitialized
`ret` variable broke this behavior.
v4l2_fh_is_singular_file() check is there just to determine
whether the power needs to be enabled, and it's not a failure
if it returns false.
Fixes: ba9139116bc0 ("media: sun6i-csi: add a missing return code")
Signed-off-by: Ondrej Jirman <megous@megous.com>
Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Diffstat (limited to 'drivers/media/platform/sunxi/sun6i-csi/sun6i_video.c')
| -rw-r--r-- | drivers/media/platform/sunxi/sun6i-csi/sun6i_video.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/media/platform/sunxi/sun6i-csi/sun6i_video.c b/drivers/media/platform/sunxi/sun6i-csi/sun6i_video.c index 33459892c1a9..607a8d39fbe2 100644 --- a/drivers/media/platform/sunxi/sun6i-csi/sun6i_video.c +++ b/drivers/media/platform/sunxi/sun6i-csi/sun6i_video.c @@ -467,7 +467,7 @@ static const struct v4l2_ioctl_ops sun6i_video_ioctl_ops = { static int sun6i_video_open(struct file *file) { struct sun6i_video *video = video_drvdata(file); - int ret; + int ret = 0; if (mutex_lock_interruptible(&video->lock)) return -ERESTARTSYS; @@ -481,10 +481,8 @@ static int sun6i_video_open(struct file *file) goto fh_release; /* check if already powered */ - if (!v4l2_fh_is_singular_file(file)) { - ret = -EBUSY; + if (!v4l2_fh_is_singular_file(file)) goto unlock; - } ret = sun6i_csi_set_power(video->csi, true); if (ret < 0) |