Index: madwifi-ng-r2420-20070602/net80211/ieee80211_scan.c
===================================================================
--- madwifi-ng-r2420-20070602.orig/net80211/ieee80211_scan.c	2007-06-04 13:21:53.432853640 +0200
+++ madwifi-ng-r2420-20070602/net80211/ieee80211_scan.c	2007-06-04 13:21:55.608522888 +0200
@@ -291,7 +291,8 @@
 	struct ieee80211com *ic = vap->iv_ic;
 	int delay;
 
-	ieee80211_sta_pwrsave(vap, 1);
+	if (vap->iv_opmode != IEEE80211_M_IBSS) 
+	    ieee80211_sta_pwrsave(vap, 1);
 	/*
 	 * Use an initial 1ms delay to ensure the null
 	 * data frame has a chance to go out.