Function netdev_unregister

net/netdev/netdev_unregister.c:114–187

 ****************************************************************************/

int netdev_unregister(FAR struct net_driver_s *dev)
{
  struct net_driver_s *prev;
  struct net_driver_s *curr;

  if (dev)
    {
      netdev_list_lock();

      /* Find the device in the list of known network devices */

      for (prev = NULL, curr = g_netdevices;
           curr && curr != dev;
           prev = curr, curr = curr->flink);

      /* Remove the device to the list of known network devices */

      if (curr)
        {
          /* Where was the entry */

          if (prev)
            {
              /* The entry was in the middle or at the end of the list */

              prev->flink = curr->flink;
            }
          else
            {
              /* The entry was at the beginning of the list */

              g_netdevices = curr->flink;
            }

          curr->flink = NULL;
        }

#ifdef CONFIG_NETDEV_IFINDEX
      free_ifindex(dev->d_ifindex);
#endif

#ifdef CONFIG_NET_MLD
      if ((dev->d_flags & IFF_MULTICAST) != 0)
        {
          /* MLD is only supported on multicast capable devices */

          mld_grpfree_all(dev);
        }
#endif

      netdev_list_unlock();

      nxrmutex_destroy(&dev->d_lock);

#if CONFIG_NETDEV_STATISTICS_LOG_PERIOD > 0
      work_cancel_sync(NETDEV_STATISTICS_WORK, &dev->d_statistics.logwork);
#endif