--- x/drivers/media/usb/em28xx/em28xx-video.c
+++ y/drivers/media/usb/em28xx/em28xx-video.c
@@ -2898,6 +2898,7 @@ unregister_dev:
 	v4l2_device_unregister(&v4l2->v4l2_dev);
 err:
 	dev->v4l2 = NULL;
+	em28xx_v4l2_media_release(dev);
 	kref_put(&v4l2->ref, em28xx_free_v4l2);
 	mutex_unlock(&dev->lock);
 	return ret;