diff options
| author | Hans Verkuil <hverkuil@xs4all.nl> | 2010-12-29 14:28:13 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2010-12-30 08:02:23 -0200 |
| commit | 3ea2b673a55cee528f83653e711d09425ed4d8b6 (patch) | |
| tree | d4c7d0e58b0f41ff90f4efeb345364b9818a2e90 /drivers/media | |
| parent | 02ac04805e6a753610d7dd1716181ccbd8e366af (diff) | |
[media] em28xx: fix incorrect s_ctrl error code and wrong call to res_free
Calling subdevs to handle s_ctrl returned a non-zero return code even if
everything went fine.
Calling STREAMOFF if no STREAMON happened earlier would hit a BUG_ON
in res_free.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/video/em28xx/em28xx-video.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/drivers/media/video/em28xx/em28xx-video.c b/drivers/media/video/em28xx/em28xx-video.c index 7be9bbad79b..37b48a26c02 100644 --- a/drivers/media/video/em28xx/em28xx-video.c +++ b/drivers/media/video/em28xx/em28xx-video.c @@ -1434,7 +1434,7 @@ static int vidioc_s_ctrl(struct file *file, void *priv, /* It isn't an AC97 control. Sends it to the v4l2 dev interface */ if (rc == 1) { - v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_ctrl, ctrl); + rc = v4l2_device_call_until_err(&dev->v4l2_dev, 0, core, s_ctrl, ctrl); /* * In the case of non-AC97 volume controls, we still need @@ -1708,11 +1708,15 @@ static int vidioc_streamoff(struct file *file, void *priv, fh, type, fh->resources, dev->resources); if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { - videobuf_streamoff(&fh->vb_vidq); - res_free(fh, EM28XX_RESOURCE_VIDEO); + if (res_check(fh, EM28XX_RESOURCE_VIDEO)) { + videobuf_streamoff(&fh->vb_vidq); + res_free(fh, EM28XX_RESOURCE_VIDEO); + } } else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) { - videobuf_streamoff(&fh->vb_vbiq); - res_free(fh, EM28XX_RESOURCE_VBI); + if (res_check(fh, EM28XX_RESOURCE_VBI)) { + videobuf_streamoff(&fh->vb_vbiq); + res_free(fh, EM28XX_RESOURCE_VBI); + } } return 0; |