/sbin/wifi: improve reliability of restarts by resetting the state properly

SVN-Revision: 19495

diff --git a/package/base-files/files/sbin/wifi b/package/base-files/files/sbin/wifi
index 7c77c0b2a27c8a2d63e698c6d1cf7012f7893c35..e21ea6ba9edfbad5e9a5545663f31f0341dcd273 100755 (executable)
--- a/package/base-files/files/sbin/wifi
+++ b/package/base-files/files/sbin/wifi
@@ -84,7 +84,10 @@ wifi_fixup_hwmode() {
 }
 
 wifi_updown() {
-       [ enable = "$1" ] && wifi_updown disable "$2"
+       [ enable = "$1" ] && {
+               wifi_updown disable "$2"
+               scan_wifi
+       }
        for device in ${2:-$DEVICES}; do (
                config_get disabled "$device" disabled
                [ 1 == "$disabled" ] && {
@@ -134,7 +137,7 @@ set_wifi_down() {
        local vifs vif vifstr
 
        [ -f "/var/run/wifi-${cfg}.pid" ] &&
-               kill "$(cat "/var/run/wifi-${cfg}.pid")"
+               kill "$(cat "/var/run/wifi-${cfg}.pid")" 2>/dev/null
        uci_revert_state wireless "$cfg"
        config_get vifs "$cfg" vifs
        for vif in $vifs; do
@@ -144,11 +147,13 @@ set_wifi_down() {
 
 scan_wifi() {
        local cfgfile="$1"
+       DEVICES=
        config_cb() {
                config_get TYPE "$CONFIG_SECTION" TYPE
                case "$TYPE" in
                        wifi-device)
                                append DEVICES "$CONFIG_SECTION"
+                               config_set "$CONFIG_SECTION" vifs ""
                        ;;
                        wifi-iface)
                                config_get device "$CONFIG_SECTION" device