diff options
| -rw-r--r-- | drivers/media/platform/soc_camera/soc_camera.c | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/drivers/media/platform/soc_camera/soc_camera.c b/drivers/media/platform/soc_camera/soc_camera.c index 5f1e5a8cbab4..6ce65762f556 100644 --- a/drivers/media/platform/soc_camera/soc_camera.c +++ b/drivers/media/platform/soc_camera/soc_camera.c @@ -384,9 +384,8 @@ static int soc_camera_reqbufs(struct file *file, void *priv, ret = vb2_reqbufs(&icd->vb2_vidq, p); } - if (!ret && !icd->streamer) - icd->streamer = file; - + if (!ret) + icd->streamer = p->count ? file : NULL; return ret; } @@ -443,12 +442,19 @@ static int soc_camera_create_bufs(struct file *file, void *priv, { struct soc_camera_device *icd = file->private_data; struct soc_camera_host *ici = to_soc_camera_host(icd->parent); + int ret; /* videobuf2 only */ if (ici->ops->init_videobuf) - return -EINVAL; - else - return vb2_create_bufs(&icd->vb2_vidq, create); + return -ENOTTY; + + if (icd->streamer && icd->streamer != file) + return -EBUSY; + + ret = vb2_create_bufs(&icd->vb2_vidq, create); + if (!ret) + icd->streamer = file; + return ret; } static int soc_camera_prepare_buf(struct file *file, void *priv, |