net80211: avoid double call IOFree of ni->ni_unref_arg.

OpenIntelWireless · May 31, 2023 · a0853fb · a0853fb
1 parent 485fc16
commit a0853fb
Showing 1 changed file with 5 additions and 3 deletions.
diff --git a/itl80211/openbsd/net80211/ieee80211_node.c b/itl80211/openbsd/net80211/ieee80211_node.c
@@ -1669,9 +1669,11 @@ ieee80211_node_cleanup(struct ieee80211com *ic, struct ieee80211_node *ni)
     }
     ieee80211_ba_del(ni);
     ieee80211_ba_free(ni);
-    IOFree(ni->ni_unref_arg, ni->ni_unref_arg_size);
-    ni->ni_unref_arg = NULL;
-    ni->ni_unref_arg_size = 0;
+    if (ni->ni_unref_arg != NULL) {
+        IOFree(ni->ni_unref_arg, ni->ni_unref_arg_size);
+        ni->ni_unref_arg = NULL;
+        ni->ni_unref_arg_size = 0;
+    }
 
 #ifndef IEEE80211_STA_ONLY
     mq_purge(&ni->ni_savedq);