diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index 8b6daf0..8c9f1c7 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -964,5 +964,6 @@
 	mutex_lock(&local->iflist_mtx);
 	chg = __ieee80211_recalc_idle(local);
 	mutex_unlock(&local->iflist_mtx);
-	ieee80211_hw_config(local, chg);
+	if (chg)
+		ieee80211_hw_config(local, chg);
 }