1126 	ret = mutex_lock_interruptible(&chain->ctrl_mutex);  in uvc_query_v4l2_ctrl()
1138 	mutex_unlock(&chain->ctrl_mutex);  in uvc_query_v4l2_ctrl()
1165 	ret = mutex_lock_interruptible(&chain->ctrl_mutex);  in uvc_query_v4l2_menu()
1203 	mutex_unlock(&chain->ctrl_mutex);  in uvc_query_v4l2_menu()
1292 	mutex_lock(&chain->ctrl_mutex);  in uvc_ctrl_status_event()
1316 	mutex_unlock(&chain->ctrl_mutex);  in uvc_ctrl_status_event()
1425 	ret = mutex_lock_interruptible(&handle->chain->ctrl_mutex);  in uvc_ctrl_add_event()
1453 	mutex_unlock(&handle->chain->ctrl_mutex);  in uvc_ctrl_add_event()
1461 	mutex_lock(&handle->chain->ctrl_mutex);  in uvc_ctrl_del_event()
1463 	mutex_unlock(&handle->chain->ctrl_mutex);  in uvc_ctrl_del_event()
1499 	return mutex_lock_interruptible(&chain->ctrl_mutex) ? -ERESTARTSYS : 0;  in uvc_ctrl_begin()
1570 	mutex_unlock(&chain->ctrl_mutex);  in __uvc_ctrl_commit()
1906 	if (mutex_lock_interruptible(&chain->ctrl_mutex))  in uvc_xu_ctrl_query()
1981 	mutex_unlock(&chain->ctrl_mutex);  in uvc_xu_ctrl_query()
2134 	if (mutex_lock_interruptible(&chain->ctrl_mutex))  in uvc_ctrl_add_mapping()
2176 	mutex_unlock(&chain->ctrl_mutex);  in uvc_ctrl_add_mapping()