Wordpress Author Page redirect

add_action('template_redirect', 'my_custom_disable_author_page');

function my_custom_disable_author_page() {
    global $wp_query;

    if ( is_author() ) {
        // Redirect to homepage, set status to 301 permenant redirect.
        // Function defaults to 302 temporary redirect.
        wp_redirect(get_option('home'), 301);
        exit;
    }
}