static int masq_inet_event(struct notifier_block *this,
			   unsigned long event,
			   void *ptr)
{
	struct in_device *idev = ((struct in_ifaddr *)ptr)->ifa_dev;
	struct netdev_notifier_info info;

	/* The masq_dev_notifier will catch the case of the device going
	 * down.  So if the inetdev is dead and being destroyed we have
	 * no work to do.  Otherwise this is an individual address removal
	 * and we have to perform the flush.
	 */
	if (idev->dead)
		return NOTIFY_DONE;

	netdev_notifier_info_init(&info, idev->dev);
	return masq_device_event(this, event, &info);
}
Weaknesses in this category are related to improper management of system resources.