[package] madwifi: don't try to set an interface essid with an empty value

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@15886 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/package/madwifi/files/lib/wifi/madwifi.sh b/package/madwifi/files/lib/wifi/madwifi.sh
index 65f9637..24d371b 100755 (executable)
--- a/package/madwifi/files/lib/wifi/madwifi.sh
+++ b/package/madwifi/files/lib/wifi/madwifi.sh
@@ -300,8 +300,10 @@ enable_atheros() {
                        config_set "$vif" bridge "$bridge"
                        start_net "$ifname" "$net_cfg"
                }
-               [ -n "$ssid" ] && iwconfig "$ifname" essid on
-               iwconfig "$ifname" essid "$ssid"
+               [ -n "$ssid" ] && {
+                       iwconfig "$ifname" essid on
+                       iwconfig "$ifname" essid "$ssid"
+               }
                set_wifi_up "$vif" "$ifname"
 
                # TXPower settings only work if device is up already