wifipineapple-openwrt/package/madwifi/patches/462-fix_ap_scan.patch

--- a/net80211/ieee80211_scan_ap.c
+++ b/net80211/ieee80211_scan_ap.c
@@ -595,6 +595,14 @@ ap_end(struct ieee80211_scan_state *ss,
 
 	ic = vap->iv_ic;
 
+	/* if we're already running, switch back to the home channel */
+	if ((vap->iv_state == IEEE80211_S_RUN) &&
+	    (ic->ic_bsschan != IEEE80211_CHAN_ANYC)) {
+		ic->ic_curchan = ic->ic_bsschan;
+		ic->ic_set_channel(ic);
+		goto out;
+	}
+
 	/* record stats for the channel that was scanned last */
 	ic->ic_set_channel(ic);
 	spin_lock_irqsave(&channel_lock, sflags);
@@ -648,6 +656,8 @@ ap_end(struct ieee80211_scan_state *ss,
 		IEEE80211_SCHEDULE_TQUEUE(&as->as_actiontq);
 		res = 1;
 	}
+
+out:
 	SCAN_AP_UNLOCK_IRQ(as);
 	return res;
 }