1224 	ret = mutex_lock_interruptible(&chain->ctrl_mutex);  in uvc_query_v4l2_ctrl()
1255 	mutex_unlock(&chain->ctrl_mutex);  in uvc_query_v4l2_ctrl()
1282 	ret = mutex_lock_interruptible(&chain->ctrl_mutex);  in uvc_query_v4l2_menu()
1320 	mutex_unlock(&chain->ctrl_mutex);  in uvc_query_v4l2_menu()
1409 	mutex_lock(&chain->ctrl_mutex);  in uvc_ctrl_status_event()
1433 	mutex_unlock(&chain->ctrl_mutex);  in uvc_ctrl_status_event()
1542 	ret = mutex_lock_interruptible(&handle->chain->ctrl_mutex);  in uvc_ctrl_add_event()
1577 	mutex_unlock(&handle->chain->ctrl_mutex);  in uvc_ctrl_add_event()
1585 	mutex_lock(&handle->chain->ctrl_mutex);  in uvc_ctrl_del_event()
1590 	mutex_unlock(&handle->chain->ctrl_mutex);  in uvc_ctrl_del_event()
1626 	return mutex_lock_interruptible(&chain->ctrl_mutex) ? -ERESTARTSYS : 0;  in uvc_ctrl_begin()
1726 	mutex_unlock(&chain->ctrl_mutex);  in __uvc_ctrl_commit()
2059 	if (mutex_lock_interruptible(&chain->ctrl_mutex))  in uvc_xu_ctrl_query()
2134 	mutex_unlock(&chain->ctrl_mutex);  in uvc_xu_ctrl_query()
2308 	if (mutex_lock_interruptible(&chain->ctrl_mutex))  in uvc_ctrl_add_mapping()
2350 	mutex_unlock(&chain->ctrl_mutex);  in uvc_ctrl_add_mapping()