Give Access to Upload File if Subscriber Cannot Upload Files

/* Give Access to Upload File if Subscriber Cannot Upload Files */
if ( current_user_can('subscriber') && !current_user_can('upload_files') ) {
    add_action('init', 'allow_subscriber_uploads');

    function allow_subscriber_uploads() {
        $new_role = get_role('subscriber');
        $new_role->add_cap('upload_files', true);
    }
}