1347 	ret = mutex_lock_interruptible(&chain->ctrl_mutex);  in uvc_query_v4l2_ctrl()
1378 	mutex_unlock(&chain->ctrl_mutex);  in uvc_query_v4l2_ctrl()
1408 	ret = mutex_lock_interruptible(&chain->ctrl_mutex);  in uvc_query_v4l2_menu()
1453 	mutex_unlock(&chain->ctrl_mutex);  in uvc_query_v4l2_menu()
1542 	mutex_lock(&chain->ctrl_mutex);  in uvc_ctrl_status_event()
1566 	mutex_unlock(&chain->ctrl_mutex);  in uvc_ctrl_status_event()
1679 	ret = mutex_lock_interruptible(&handle->chain->ctrl_mutex);  in uvc_ctrl_add_event()
1714 	mutex_unlock(&handle->chain->ctrl_mutex);  in uvc_ctrl_add_event()
1722 	mutex_lock(&handle->chain->ctrl_mutex);  in uvc_ctrl_del_event()
1727 	mutex_unlock(&handle->chain->ctrl_mutex);  in uvc_ctrl_del_event()
1763 	return mutex_lock_interruptible(&chain->ctrl_mutex) ? -ERESTARTSYS : 0;  in uvc_ctrl_begin()
1863 	mutex_unlock(&chain->ctrl_mutex);  in __uvc_ctrl_commit()
2209 	if (mutex_lock_interruptible(&chain->ctrl_mutex))  in uvc_xu_ctrl_query()
2284 	mutex_unlock(&chain->ctrl_mutex);  in uvc_xu_ctrl_query()
2476 	if (mutex_lock_interruptible(&chain->ctrl_mutex))  in uvc_ctrl_add_mapping()
2518 	mutex_unlock(&chain->ctrl_mutex);  in uvc_ctrl_add_mapping()