fix bug with ap+sta modes using wpa

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@7877 3c298f89-4303-0410-b956-a3cf2f4a3e73

package/broadcom-wl/files/lib/wifi/broadcom.sh

@@ -200,17 +200,18 @@ enable_broadcom() {
 		}
 		[ -z "$nasopts" ] || {
 			eval "${vif}_ssid=\"\$ssid\""
-			mode="-A"
-			[ "$ap" = "0" ] && {
-				mode="-S"
+			nas_mode="-A"
+			use_nas=1
+			[ "$mode" = "sta" ] && {
+				nas_mode="-S"
 				[ -z "$bridge" ] || {
 					append vif_pre_up "supplicant 1" "$N"
 					append vif_pre_up "passphrase $key" "$N"
 					
-					nas=""
+					use_nas=0
 				}
 			}
-			[ -z "$nas" ] || nas_cmd="${nas_cmd:+$nas_cmd$N}$nas -P /var/run/nas.$ifname.pid -H 34954 ${bridge:+ -l $bridge} -i $ifname $mode -m $auth -w $wsec -s \"\$${vif}_ssid\" -g 3600 $nasopts &"
+			[ -z "$nas" -o "$use_nas" = "0" ] || nas_cmd="${nas_cmd:+$nas_cmd$N}$nas -P /var/run/nas.$ifname.pid -H 34954 ${bridge:+ -l $bridge} -i $ifname $nas_mode -m $auth -w $wsec -s \"\$${vif}_ssid\" -g 3600 $nasopts &"
 		}
 		_c=$(($_c + 1))
 	done