From 119bd00f7b67a0c2491179453f15e8603f2aa9ec Mon Sep 17 00:00:00 2001
From: Bob Mottram <bob@robotics.uk.to>
Date: Fri, 21 Oct 2016 10:33:40 +0100
Subject: [PATCH] Only write wifi interface if parameters are given

---
 src/freedombone-utils-wifi | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/freedombone-utils-wifi b/src/freedombone-utils-wifi
index a9278973..ecd36d12 100755
--- a/src/freedombone-utils-wifi
+++ b/src/freedombone-utils-wifi
@@ -368,13 +368,12 @@ function networks_from_file {
 }
 
 function create_networks_interactive {
+    remove_config_param "WIFI_INTERFACE"
     update_wifi_adaptors
     if [ ! $IFACE ]; then
         # Don't try to configure wifi if there are no adaptors
-        remove_config_param "WIFI_INTERFACE"
         return
     fi
-    write_config_param "WIFI_INTERFACE" "$WIFI_INTERFACE"
 
     if [ -f $WIFI_NETWORKS_FILE ]; then
         rm $WIFI_NETWORKS_FILE
@@ -433,9 +432,11 @@ function create_networks_interactive {
         if [ ${#WIFI_SSID} -gt 1 ]; then
             if [ ${#WIFI_TYPE} -gt 1 ]; then
                 if [[ "${WIFI_TYPE}" == $'none' || "${WIFI_TYPE}" == $'open' ]]; then
+                    write_config_param "WIFI_INTERFACE" "$WIFI_INTERFACE"
                     return
                 else
                     if [ ${#WIFI_PASSPHRASE} -gt 1 ]; then
+                        write_config_param "WIFI_INTERFACE" "$WIFI_INTERFACE"
                         return
                     fi
                 fi