void device_pm_move_to_tail(struct device *dev)
{
	int idx;

	idx = device_links_read_lock();
	device_pm_lock();
	device_reorder_to_tail(dev, NULL);
	device_pm_unlock();
	device_links_read_unlock(idx);
}
void device_pm_move_to_tail(struct device *dev)
{
	int idx;

	idx = device_links_read_lock();
	device_pm_lock();
	device_reorder_to_tail(dev, NULL);
	device_pm_unlock();
	device_links_read_unlock(idx);
}