1119 	ret = mutex_lock_interruptible(&chain->ctrl_mutex);  in uvc_query_v4l2_ctrl()
1131 	mutex_unlock(&chain->ctrl_mutex);  in uvc_query_v4l2_ctrl()
1158 	ret = mutex_lock_interruptible(&chain->ctrl_mutex);  in uvc_query_v4l2_menu()
1196 	mutex_unlock(&chain->ctrl_mutex);  in uvc_query_v4l2_menu()
1290 	mutex_lock(&chain->ctrl_mutex);  in uvc_ctrl_status_event_work()
1314 	mutex_unlock(&chain->ctrl_mutex);  in uvc_ctrl_status_event_work()
1413 	ret = mutex_lock_interruptible(&handle->chain->ctrl_mutex);  in uvc_ctrl_add_event()
1441 	mutex_unlock(&handle->chain->ctrl_mutex);  in uvc_ctrl_add_event()
1449 	mutex_lock(&handle->chain->ctrl_mutex);  in uvc_ctrl_del_event()
1451 	mutex_unlock(&handle->chain->ctrl_mutex);  in uvc_ctrl_del_event()
1487 	return mutex_lock_interruptible(&chain->ctrl_mutex) ? -ERESTARTSYS : 0;  in uvc_ctrl_begin()
1558 	mutex_unlock(&chain->ctrl_mutex);  in __uvc_ctrl_commit()
1890 	if (mutex_lock_interruptible(&chain->ctrl_mutex))  in uvc_xu_ctrl_query()
1965 	mutex_unlock(&chain->ctrl_mutex);  in uvc_xu_ctrl_query()
2119 	if (mutex_lock_interruptible(&chain->ctrl_mutex))  in uvc_ctrl_add_mapping()
2161 	mutex_unlock(&chain->ctrl_mutex);  in uvc_ctrl_add_mapping()