if (dev->pnp.cid_list) kfree(dev->pnp.cid_list);
kfree(dev->pnp.cid_list);
static void acpi_device_release(struct kobject *kobj){	struct acpi_device *dev = container_of(kobj, struct acpi_device, kobj);	if (dev->pnp.cid_list)		kfree(dev->pnp.cid_list);	kfree(dev);}