Do not set nwid over and over again. We just found the ess by comparing

the nwid. It will not have changed in the meantime.
OK stsp

diff --git a/sys/net80211/ieee80211_node.c b/sys/net80211/ieee80211_node.c
index d4561bf..434bec3 100644 (file)
--- a/sys/net80211/ieee80211_node.c
+++ b/sys/net80211/ieee80211_node.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: ieee80211_node.c,v 1.136 2018/08/03 10:52:45 phessler Exp $   */
+/*     $OpenBSD: ieee80211_node.c,v 1.137 2018/08/06 09:34:17 florian Exp $    */
 /*     $NetBSD: ieee80211_node.c,v 1.14 2004/05/09 09:18:47 dyoung Exp $       */
 
 /*-
@@ -229,11 +229,10 @@ ieee80211_add_ess(struct ieee80211com *ic, char *nwid, int wpa, int wep)
                ess = malloc(sizeof(*ess), M_DEVBUF, M_NOWAIT|M_ZERO);
                if (ess == NULL)
                        return (ENOMEM);
+               memcpy(ess->essid, nwid, ic->ic_des_esslen);
+               ess->esslen = ic->ic_des_esslen;
        }
 
-       memcpy(ess->essid, nwid, ic->ic_des_esslen);
-       ess->esslen = ic->ic_des_esslen;
-
        if (wpa) {
                if (ic->ic_flags & (IEEE80211_F_RSNON|IEEE80211_F_PSK)) {
                        ess->flags = IEEE80211_F_RSNON;