openwrt-xburst/package/madwifi/patches/388-apsta_fix.patch

--- a/net80211/ieee80211_proto.c
+++ b/net80211/ieee80211_proto.c
@@ -1415,7 +1415,8 @@ __ieee80211_newstate(struct ieee80211vap
 	vap->iv_state = nstate;			/* state transition */
 	del_timer(&vap->iv_mgtsend);
 	if ((vap->iv_opmode != IEEE80211_M_HOSTAP) && 
-			(ostate != IEEE80211_S_SCAN))
+			(ostate != IEEE80211_S_SCAN) &&
+			!(vap->iv_flags_ext & IEEE80211_FEXT_SCAN_PENDING))
 		ieee80211_cancel_scan(vap);	/* background scan */
 	ni = vap->iv_bss;			/* NB: no reference held */
 	switch (nstate) {
@@ -1457,7 +1458,8 @@ __ieee80211_newstate(struct ieee80211vap
 			}
 			goto reset;
 		case IEEE80211_S_SCAN:
-			ieee80211_cancel_scan(vap);
+			if (!(vap->iv_flags_ext & IEEE80211_FEXT_SCAN_PENDING))
+				ieee80211_cancel_scan(vap);
 			goto reset;
 		reset:
 			ieee80211_reset_bss(vap);
@@ -1995,7 +1997,9 @@ ieee80211_newstate(struct ieee80211vap *
 					}
 				}
 			}
-		} else if (dstate == IEEE80211_S_SCAN) {
+		} else if ((dstate == IEEE80211_S_SCAN) ||
+				(dstate == IEEE80211_S_AUTH) ||
+				(dstate == IEEE80211_S_ASSOC)) {
 			/* Force to scan pending... someone is scanning */
 			vap->iv_flags_ext |= IEEE80211_FEXT_SCAN_PENDING;
 			__ieee80211_newstate(vap, IEEE80211_S_INIT, arg);
--- a/net80211/ieee80211_output.c
+++ b/net80211/ieee80211_output.c
@@ -238,7 +238,9 @@ ieee80211_hardstart(struct sk_buff *skb,
 	}
 	
 	/* Cancel any running BG scan */
-	if (!(ic->ic_flags_ext & IEEE80211_FEXT_BGSCAN_THR) && (vap->iv_state == IEEE80211_S_RUN))
+	if (!(ic->ic_flags_ext & IEEE80211_FEXT_BGSCAN_THR) &&
+		(vap->iv_state == IEEE80211_S_RUN) &&
+		(ic->ic_flags_ext & IEEE80211_FEXT_BGSCAN))
 		ieee80211_cancel_scan(vap);
 
 	/* 
--- a/net80211/ieee80211_wireless.c
+++ b/net80211/ieee80211_wireless.c
@@ -2728,9 +2728,9 @@ ieee80211_ioctl_setparam(struct net_devi
 				return -EINVAL;
 			vap->iv_flags |= IEEE80211_F_BGSCAN;
 		} else {
-			/* XXX racey? */
+			if (ic->ic_flags_ext & IEEE80211_FEXT_BGSCAN)
+				ieee80211_cancel_scan(vap);	/* anything current */
 			vap->iv_flags &= ~IEEE80211_F_BGSCAN;
-			ieee80211_cancel_scan(vap);	/* anything current */
 		}
 		break;
 	case IEEE80211_PARAM_BGSCAN_IDLE: