Entering no limit results in error

Warning: preg_replace_callback() expects parameter 4 to be integer, string given in _taxonomy_autolink_links() (line 29 of /media/projects/html/iwb/sites/all/modules/contrib/taxonomy_autolink/includes/taxonomy_autolink.func.inc).

I changed line 18 in taxonomy_autolink.func.inc to :

$limit = (empty($configs['limit'])) ? -1 : $configs['limit'];

preg_replace_callback uses -1 as 'no limit' in the fourth parameter : http://php.net/manual/en/function.preg-replace-callback.php

I've never rolled a patch for Drupal before, so let's see if this works.