1 files changed, 2 insertions, 0 deletions

diff --git a/net/wireless/core.c b/net/wireless/core.c
index 88cb73394864..d6940085d59c 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -384,6 +384,8 @@ static int cfg80211_netdev_notifier_call(struct notifier_block * nb,
 
         rdev = wiphy_to_dev(dev->ieee80211_ptr->wiphy);
 
+        WARN_ON(dev->ieee80211_ptr->iftype == NL80211_IFTYPE_UNSPECIFIED);
+
         switch (state) {
         case NETDEV_REGISTER:
                 mutex_lock(&rdev->devlist_mtx);