sco_proc_cleanup(); 
class_remove_file(&bt_class, &class_attr_sco); 
static void __exit sco_exit(void){	sco_proc_cleanup();	if (bt_sock_unregister(BTPROTO_SCO) < 0)		BT_ERR("SCO socket unregistration failed");	if (hci_unregister_proto(&sco_hci_proto) < 0)		BT_ERR("SCO protocol unregistration failed");	proto_unregister(&sco_proto);}
4520	/local/tlutelli/issta_data/temp/c/2005_temp/2005/4520/be9d122730c878baafe11e70d1436faac229f2fc/sco.c/buggy/net/bluetooth/sco.c