// add_filter('show_admin_bar','codingeek_show_admin_bar');

function codingeek_check_user_validation(){

  $current_user = wp_get_current_user();

  if ( in_array('subscriber', $current_user)) {
    //have to write code for subscriber
      show_admin_bar( false ); // for hide adminbar
   };

  }


add_action('wp_login','codingeek_check_user_validation');