mac80211: Creating new IBSS with fixed BSSID

This fixes a bug when creating a new IBSS network with a
fixed BSSID. The fixed BSSID situation is now with one of
my last patches handled in ieee80211_sta_find_ibss()
function.

It's more robust to test against
(ifsta->flags & IEEE80211_STA_PREV_BSSID_SET), because
ifsta->state is not seted right in every situation and so
the creating of the new IBSS network sometimes hangs after
the first try to scan for a network to merge.
Signed-off-by: Alina Friedrichsen <x-alina@gmx.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

net/mac80211/mlme.c

@@ -2722,9 +2722,8 @@ void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local)
 
 	if (sdata && sdata->vif.type == NL80211_IFTYPE_ADHOC) {
 		ifsta = &sdata->u.sta;
-		if (!(ifsta->flags & IEEE80211_STA_BSSID_SET) ||
-		    (!(ifsta->state == IEEE80211_STA_MLME_IBSS_JOINED) &&
-		    !ieee80211_sta_active_ibss(sdata)))
+		if ((!(ifsta->flags & IEEE80211_STA_PREV_BSSID_SET)) ||
+		    !ieee80211_sta_active_ibss(sdata))
 			ieee80211_sta_find_ibss(sdata, ifsta);
 	}