Redirecting authenticated users when they try to access login page. [FOSUserBundle - Symfony 3]

SecurityController.php

<?php

/*
 * This file is part of the FOSUserBundle package.
 *
 * (c) FriendsOfSymfony <http://friendsofsymfony.github.com/>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace TeeyoUserBundle\Controller;

use FOS\UserBundle\Controller\SecurityController as BaseController;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\Security\Core\Exception\AuthenticationException;
use Symfony\Component\Security\Core\Security;

class SecurityController extends BaseController
{

     /**
     * Renders the login template with the given parameters. Overwrite this function in
     * an extended controller to provide additional data for the login template.
     *
     * @param array $data
     *
     * @return Response
     */
    protected function renderLogin(array $data)
    {
       /**
        * If the user has already logged in (marked as is authenticated fully by symfony's security)
        * then redirect this user back (in my case, to the dashboard, which is the main entry for 
        * my logged in users)
        */
       if ($this->get('security.authorization_checker')->isGranted('IS_AUTHENTICATED_FULLY')) {
           return $this->redirectToRoute('teeyo_quiz_homepage');
       }

        return $this->render('@FOSUser/Security/login.html.twig', $data);
    }

}