fff-wireless: Hide errors if device doesn't have radios

Some output and exit status are hidden, as they are a valid behaviour
if the device doesn't have any radios.

Signed-off-by: Fabian Bläse <fabian@blaese.de>
Reviewed-by: Christian Dresel <fff@chrisi01.de>

src/packages/fff/fff-wireless/Makefile

@@ -1,7 +1,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=fff-wireless
-PKG_RELEASE:=10
+PKG_RELEASE:=11
 
 PKG_BUILD_DIR:=$(BUILD_DIR)/$(PKG_NAME)
 

src/packages/fff/fff-wireless/files/etc/gateway.d/28-wifi

@@ -49,9 +49,11 @@ configure() {
 }
 
 apply() {
-	uci commit wireless
+	uci -q commit wireless
+	return 0
 }
 
 revert() {
-	uci revert wireless
+	uci -q revert wireless
+	return 0
 }

src/packages/fff/fff-wireless/files/lib/functions/fff/wireless

@@ -8,7 +8,7 @@ wifiListRadio() {
 		return 1
 	fi
 
-	uci show wireless | sed -n 's,.*\.\([a-z0-9]*\)=wifi-device,\1,p'
+	uci -q show wireless | sed -n 's,.*\.\([a-z0-9]*\)=wifi-device,\1,p'
 	return 0
 }