rem: lock_release(tl->timer_list->mutex);
add: lock_release( foo );
context: int rmv_from_timer_list( struct timer_link* tl ){	/* lock the list */	lock_get(tl->timer_list->mutex);	if (is_in_timer_list( tl )) {		tl->prev_tl->next_tl = tl->next_tl;		tl->next_tl->prev_tl = tl->prev_tl;		tl->next_tl = 0;		tl->prev_tl = 0;		/* unlock the list */		DBG("DEBUG: rmv_from_timer_list[%p]: %p\n",tl->timer_list,tl);		tl->timer_list = 0;		lock_release(tl->timer_list->mutex);		return 1;	}	lock_release(tl->timer_list->mutex);	return -1;}