rem: return;
context: void free_presentity(presentity_t* _p){	/* LOG(L_ERR, "free_presentity %p\n", _p); */	watcher_t* ptr;	presence_tuple_t *tuple;	return;	while(_p->watchers) {		ptr = _p->watchers;		_p->watchers = _p->watchers->next;		free_watcher(ptr);	}	while(_p->winfo_watchers) {		ptr = _p->winfo_watchers;		_p->winfo_watchers = _p->winfo_watchers->next;		free_watcher(ptr);	}		while(_p->tuples) {		tuple = _p->tuples;		_p->tuples = _p->tuples->next;		free_presence_tuple(tuple);	}	shm_free(_p);}