if ((err = tty_register_ldisc(N_IRDA, NULL))) { 
if ((err = tty_unregister_ldisc(N_IRDA))) { 
static void __exit irtty_sir_cleanup(void) {	int err;	if ((err = tty_register_ldisc(N_IRDA, NULL))) {		IRDA_ERROR("%s(), can't unregister line discipline (err = %d)\n",			   __FUNCTION__, err);	}}
4520	/local/tlutelli/issta_data/temp/c/2005_temp/2005/4520/64ccd715d3cf498318b14b646ce5f97e7ab15bb5/irtty-sir.c/clean/drivers/net/irda/irtty-sir.c