class_simple_device_remove(tcd->char_device->dev); 
class_device_destroy(tape_class, tcd->char_device->dev); 
void unregister_tape_dev(struct tape_class_device *tcd){	if (tcd != NULL && !IS_ERR(tcd)) {		sysfs_remove_link(			&tcd->class_device->dev->kobj,			tcd->mode_name		);		class_simple_device_remove(tcd->char_device->dev);		cdev_del(tcd->char_device);		kfree(tcd);	}}
4520	/local/tlutelli/issta_data/temp/c/2005_temp/2005/4520/56b2293595b2eb52cc2aa2baf92c6cfa8265f9d5/tape_class.c/buggy/drivers/s390/char/tape_class.c