diff options
Diffstat (limited to 'drivers/media/video/v4l2-event.c')
| -rw-r--r-- | drivers/media/video/v4l2-event.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/media/video/v4l2-event.c b/drivers/media/video/v4l2-event.c index de74ce07b5e2..69fd343d4774 100644 --- a/drivers/media/video/v4l2-event.c +++ b/drivers/media/video/v4l2-event.c @@ -134,15 +134,22 @@ int v4l2_event_dequeue(struct v4l2_fh *fh, struct v4l2_event *event, if (nonblocking) return __v4l2_event_dequeue(fh, event); + /* Release the vdev lock while waiting */ + if (fh->vdev->lock) + mutex_unlock(fh->vdev->lock); + do { ret = wait_event_interruptible(events->wait, events->navailable != 0); if (ret < 0) - return ret; + break; ret = __v4l2_event_dequeue(fh, event); } while (ret == -ENOENT); + if (fh->vdev->lock) + mutex_lock(fh->vdev->lock); + return ret; } EXPORT_SYMBOL_GPL(v4l2_event_dequeue); |