wifi: properly handle disconnects

widgets/wifi.lua

@@ -22,7 +22,11 @@ local string = {
 module("vicious.widgets.wifi")
 
 
--- Initialize function tables
+-- {{{ Wireless widget type
+local function worker(format, warg)
+    if not warg then return end
+
+    -- Default values
     local winfo = {
         ["{ssid}"] = "N/A",
         ["{mode}"] = "N/A",
@@ -33,10 +37,6 @@ local winfo = {
         ["{sign}"] = 0
     }
 
--- {{{ Wireless widget type
-local function worker(format, warg)
-    if not warg then return end
-
     -- Get data from iwconfig where available
     local iwconfig = "/sbin/iwconfig"
     local f = io.open(iwconfig, "rb")