diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 5cec0c251e86..065a9205a858 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -566,6 +566,8 @@ static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
 	/* KRACK protection, shouldn't happen but just silently accept key */
 	if (err == -EALREADY)
 		err = 0;
+	if (err == -EINVAL)
+		ieee80211_key_free_unused(key);
 
 	return err;
 }