1120 	ret = mutex_lock_interruptible(&chain->ctrl_mutex);  in uvc_query_v4l2_ctrl()
1132 	mutex_unlock(&chain->ctrl_mutex);  in uvc_query_v4l2_ctrl()
1159 	ret = mutex_lock_interruptible(&chain->ctrl_mutex);  in uvc_query_v4l2_menu()
1197 	mutex_unlock(&chain->ctrl_mutex);  in uvc_query_v4l2_menu()
1291 	mutex_lock(&chain->ctrl_mutex);  in uvc_ctrl_status_event_work()
1315 	mutex_unlock(&chain->ctrl_mutex);  in uvc_ctrl_status_event_work()
1414 	ret = mutex_lock_interruptible(&handle->chain->ctrl_mutex);  in uvc_ctrl_add_event()
1442 	mutex_unlock(&handle->chain->ctrl_mutex);  in uvc_ctrl_add_event()
1450 	mutex_lock(&handle->chain->ctrl_mutex);  in uvc_ctrl_del_event()
1452 	mutex_unlock(&handle->chain->ctrl_mutex);  in uvc_ctrl_del_event()
1488 	return mutex_lock_interruptible(&chain->ctrl_mutex) ? -ERESTARTSYS : 0;  in uvc_ctrl_begin()
1559 	mutex_unlock(&chain->ctrl_mutex);  in __uvc_ctrl_commit()
1886 	if (mutex_lock_interruptible(&chain->ctrl_mutex))  in uvc_xu_ctrl_query()
1961 	mutex_unlock(&chain->ctrl_mutex);  in uvc_xu_ctrl_query()
2129 	if (mutex_lock_interruptible(&chain->ctrl_mutex))  in uvc_ctrl_add_mapping()
2171 	mutex_unlock(&chain->ctrl_mutex);  in uvc_ctrl_add_mapping()