1115 	ret = mutex_lock_interruptible(&chain->ctrl_mutex);  in uvc_query_v4l2_ctrl()
1127 	mutex_unlock(&chain->ctrl_mutex);  in uvc_query_v4l2_ctrl()
1154 	ret = mutex_lock_interruptible(&chain->ctrl_mutex);  in uvc_query_v4l2_menu()
1192 	mutex_unlock(&chain->ctrl_mutex);  in uvc_query_v4l2_menu()
1286 	mutex_lock(&chain->ctrl_mutex);  in uvc_ctrl_status_event_work()
1310 	mutex_unlock(&chain->ctrl_mutex);  in uvc_ctrl_status_event_work()
1409 	ret = mutex_lock_interruptible(&handle->chain->ctrl_mutex);  in uvc_ctrl_add_event()
1437 	mutex_unlock(&handle->chain->ctrl_mutex);  in uvc_ctrl_add_event()
1445 	mutex_lock(&handle->chain->ctrl_mutex);  in uvc_ctrl_del_event()
1447 	mutex_unlock(&handle->chain->ctrl_mutex);  in uvc_ctrl_del_event()
1483 	return mutex_lock_interruptible(&chain->ctrl_mutex) ? -ERESTARTSYS : 0;  in uvc_ctrl_begin()
1554 	mutex_unlock(&chain->ctrl_mutex);  in __uvc_ctrl_commit()
1881 	if (mutex_lock_interruptible(&chain->ctrl_mutex))  in uvc_xu_ctrl_query()
1956 	mutex_unlock(&chain->ctrl_mutex);  in uvc_xu_ctrl_query()
2124 	if (mutex_lock_interruptible(&chain->ctrl_mutex))  in uvc_ctrl_add_mapping()
2166 	mutex_unlock(&chain->ctrl_mutex);  in uvc_ctrl_add_mapping()