l2cap_proc_cleanup(); 
class_remove_file(&bt_class, &class_attr_l2cap); 
static void __exit l2cap_exit(void){	l2cap_proc_cleanup();	if (bt_sock_unregister(BTPROTO_L2CAP) < 0)		BT_ERR("L2CAP socket unregistration failed");	if (hci_unregister_proto(&l2cap_hci_proto) < 0)		BT_ERR("L2CAP protocol unregistration failed");	proto_unregister(&l2cap_proto);}
4520	/local/tlutelli/issta_data/temp/c/2005_temp/2005/4520/be9d122730c878baafe11e70d1436faac229f2fc/l2cap.c/clean/net/bluetooth/l2cap.c