if ((ret = tty_register_ldisc(N_6PACK, NULL))) 
if ((ret = tty_unregister_ldisc(N_6PACK))) 
static void __exit sixpack_exit_driver(void){	int ret;	if ((ret = tty_register_ldisc(N_6PACK, NULL)))		printk(msg_unregfail, ret);}
4520	/local/tlutelli/issta_data/temp/c/2005_temp/2005/4520/64ccd715d3cf498318b14b646ce5f97e7ab15bb5/6pack.c/clean/drivers/net/hamradio/6pack.c