Limit recurrences created by recurring event

<?php
/*
This snippet limits the number of recurrences a recurring event can create. Change $limit accordingly.

For installation instructions please see this documentation:
http://wp-events-plugin.com/tutorials/how-to-safely-add-php-code-to-wordpress/
*/
/**
 * @param bool $result
 * @param EM_Event $EM_Event
 * @return boolean
 */
function my_em_recurring_events_limit( $result, $EM_Event ){
    if( $result && $EM_Event->is_recurring() ){
        $limit = 5;
        $matching_days = $EM_Event->get_recurrence_days();
        $count = count($matching_days);
        if( $count > $limit ){
            $EM_Event->add_error("You can only create a maxumum of $limit events, you are trying to create $count events. Please change your date schedule accordingly.");
            return false;
        }
    }
    return $result;
}
add_filter('em_event_validate_meta', 'my_em_recurring_events_limit', 10, 2);