Modify Home link on portfolio custom post type.php

<?php
/** Do NOT include the opening php tag */
 
 
add_filter ( 'genesis_home_crumb', 'sc_breadcrumb_home_portfolio_link' );
/**
 * Modify Home link on portfolio custom post type
 *
 */
function sc_breadcrumb_home_portfolio_link( $crumb ) {
  
	if ( is_post_type_archive('portfolio') || 'portfolio' == get_post_type() )
		return preg_replace('/href="[^"]*"/', 'href="http://example.com/portfolio"', $crumb);
		
	else
		return $crumb;	
		
}