wifi: mac80211: fix error path key leak

In the previous key leak fix for the other error
paths, I meant to unify all of them to the same
place, but used the wrong label, which I noticed
when doing the merge into wireless-next. Fix it.

Fixes: d097ae01 ("wifi: mac80211: fix potential key leak")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

net/mac80211/key.c

@@ -912,7 +912,7 @@ int ieee80211_key_link(struct ieee80211_key *key,
 	 */
 	if (ieee80211_key_identical(sdata, old_key, key)) {
 		ret = -EALREADY;
-		goto unlock;
+		goto out;
 	}
 
 	key->local = sdata->local;
@@ -940,7 +940,6 @@ int ieee80211_key_link(struct ieee80211_key *key,
 
  out:
 	ieee80211_key_free_unused(key);
- unlock:
 	mutex_unlock(&sdata->local->key_mtx);
 
 	return ret;