diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index 3f830ac159e519f7fde25db5d51c4ff344f813ce..0fc9752faceab5980ae23a11cdad1bd42f634a06 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -993,8 +993,10 @@ int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
 	if (params->channel_fixed) {
 		sdata->local->oper_channel = params->channel;
 		if (!ieee80211_set_channel_type(sdata->local, sdata,
-					       params->channel_type))
+					       params->channel_type)) {
+			mutex_unlock(&sdata->u.ibss.mtx);
 			return -EINVAL;
+		}
 	}
 
 	if (params->ie) {