role permissions missing module in hook_install

Following installation of userprotect, when I attempted to submit the user permissions form I would get the following error:

PDOException: SQLSTATE[23000]: Integrity constraint violation: 1062 Duplicate entry '2-change own e-mail' for key 'PRIMARY': INSERT INTO {role_permission} (rid, permission, module) VALUES (:db_insert_placeholder_0, :db_insert_placeholder_1, db_insert_placeholder_2); Array ( [:db_insert_placeholder_0] => 2 [:db_insert_placeholder_1] => change own e-mail [:db_insert_placeholder_2] => userprotect ) in user_role_grant_permissions() (line 2865 of C:\wamp\www\drupal7\modules\user\user.module).

I discovered that uninstalling and reinstalling would result in the same error immediately after install. This appeared to result from attempts to update the userprotect permissions in the {role_permission} table when the "module" column had a blank value. Because the permissions weren't being cleared out on uninstall (the system couldn't find them), the error would pop up immediately on a reinstall.

Fixed this by assigning the module name in hook_install():

  foreach ($permissions as $permission) {
    db_insert('role_permission')
      ->fields(array(
        'rid' => DRUPAL_AUTHENTICATED_RID,
        'permission' => $permission,
        'module' => 'userprotect',
      ))->execute();
  }