Index: admin-bar.php
===================================================================
--- admin-bar.php	(revision 28572)
+++ admin-bar.php	(working copy)
@@ -284,7 +284,7 @@
 	$wp_admin_bar->add_menu( array(
 		'id'    => 'site-name',
 		'title' => $title,
-		'href'  => is_admin() ? home_url( '/' ) : admin_url(),
+		'href'  => home_url( '/' ),
 	) );
 
 	// Create submenu items.