if (ni->ni_challenge != NULL) { FREE(ni->ni_challenge, M_DEVBUF); ni->ni_challenge = NULL; }
ieee80211_node_cleanup(ic, ni);
ieee80211_node_free(struct ieee80211com *ic, struct ieee80211_node *ni){	if (ni->ni_challenge != NULL) {		FREE(ni->ni_challenge, M_DEVBUF);		ni->ni_challenge = NULL;	}	FREE(ni, M_80211_NODE);}