Welcome User Msg in Admin Nav Bar

function add_welcome() {
global $current_user;
get_currentuserinfo();
$author = $current_user->display_name;	
if ( is_user_logged_in() ) {
	echo "<li class=\"welcome\">" . bp_author_avatar() . "Welcome <strong>" . $author . "</strong></li>";
	} else {
	echo "<li class=\"welcome\">Welcome <strong>Guest</strong></li>";
	}	
}

add_action( 'bp_adminbar_menus', 'add_welcome', 15 );