diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index e429dbb10df71d986448ad2d1361f94c5defc252..d46ed4cbe771757b48b15090d33a17a8d4b83096 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -1217,7 +1217,10 @@ static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
 	return 0;
 
 error:
+	mutex_lock(&local->mtx);
 	ieee80211_vif_release_channel(sdata);
+	mutex_unlock(&local->mtx);
+
 	return err;
 }