Recursion limit problem

Found a problem when adapting the code for another use. The logic that limits recursion depth doesn't seem to be right. The if() should wrap the foreach(). Something like this:

    $query_result = db_query($sql, array(':mlid'=>$mlid) );
    $this_level = array(
      'nid' => $nid,
      'title' => $title,
    );
    $current_recusion_level++;
    if ( $current_recusion_level <= $max_recusion_level ){
      foreach ( $query_result as $child ) {
        $this_level['children'][] = _dolfinity_book_blocks_make_tree($child->mlid,$child->nid,$child->title,$current_recusion_level,$max_recusion_level);
      }
    }
    return $this_level;

(This is an English version that doesn't render, of course.)