+static int nl802154_del_interface(struct sk_buff *skb, struct genl_info *info)
+{
+ struct cfg802154_registered_device *rdev = info->user_ptr[0];
+ struct wpan_dev *wpan_dev = info->user_ptr[1];
+
+ if (!rdev->ops->del_virtual_intf)
+ return -EOPNOTSUPP;
+
+ /* If we remove a wpan device without a netdev then clear
+ * user_ptr[1] so that nl802154_post_doit won't dereference it
+ * to check if it needs to do dev_put(). Otherwise it crashes
+ * since the wpan_dev has been freed, unlike with a netdev where
+ * we need the dev_put() for the netdev to really be freed.
+ */
+ if (!wpan_dev->netdev)
+ info->user_ptr[1] = NULL;
+
+ return rdev_del_virtual_intf(rdev, wpan_dev);
+}
+