1394 	ret = mutex_lock_interruptible(&chain->ctrl_mutex);  in uvc_query_v4l2_ctrl()
1425 	mutex_unlock(&chain->ctrl_mutex);  in uvc_query_v4l2_ctrl()
1455 	ret = mutex_lock_interruptible(&chain->ctrl_mutex);  in uvc_query_v4l2_menu()
1500 	mutex_unlock(&chain->ctrl_mutex);  in uvc_query_v4l2_menu()
1589 	mutex_lock(&chain->ctrl_mutex);  in uvc_ctrl_status_event()
1613 	mutex_unlock(&chain->ctrl_mutex);  in uvc_ctrl_status_event()
1726 	ret = mutex_lock_interruptible(&handle->chain->ctrl_mutex);  in uvc_ctrl_add_event()
1761 	mutex_unlock(&handle->chain->ctrl_mutex);  in uvc_ctrl_add_event()
1769 	mutex_lock(&handle->chain->ctrl_mutex);  in uvc_ctrl_del_event()
1774 	mutex_unlock(&handle->chain->ctrl_mutex);  in uvc_ctrl_del_event()
1810 	return mutex_lock_interruptible(&chain->ctrl_mutex) ? -ERESTARTSYS : 0;  in uvc_ctrl_begin()
1912 	mutex_unlock(&chain->ctrl_mutex);  in __uvc_ctrl_commit()
2265 	if (mutex_lock_interruptible(&chain->ctrl_mutex))  in uvc_xu_ctrl_query()
2340 	mutex_unlock(&chain->ctrl_mutex);  in uvc_xu_ctrl_query()
2532 	if (mutex_lock_interruptible(&chain->ctrl_mutex))  in uvc_ctrl_add_mapping()
2574 	mutex_unlock(&chain->ctrl_mutex);  in uvc_ctrl_add_mapping()