From: Andre Heider <a.heider@gmail.com>
Date: Sat, 14 Dec 2024 10:27:09 +0000 (+0100)
Subject: base-files: fix shell scope error for the default LED brightness
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=3c7134fa320b823ab7c5f91dd1ad948491d97478;p=openwrt%2Fstaging%2Fblocktrron.git

base-files: fix shell scope error for the default LED brightness

This fixes "sh: write error: Invalid argument" for all default!=1 LEDs
as an empty $brightness was used.

Setting up LEDs via luci also now works again.

Fixes cbdfd03e: "base-files: add option to set LED brightness"
Signed-off-by: Andre Heider <a.heider@gmail.com>
Link: https://github.com/openwrt/openwrt/issues/17269
Signed-off-by: John Crispin <john@phrozen.org>
---

diff --git a/package/base-files/files/etc/init.d/led b/package/base-files/files/etc/init.d/led
index d292e2a8dd..79fdd452ce 100755
--- a/package/base-files/files/etc/init.d/led
+++ b/package/base-files/files/etc/init.d/led
@@ -106,9 +106,10 @@ load_led() {
 		[ "$default" = 0 ] &&
 			echo 0 >/sys/class/leds/${sysfs}/brightness
 
-		[ $default = 1 ] &&
-			[ -z "$brightness" ] && brightness=$(cat /sys/class/leds/${sysfs}/max_brightness)
-			echo $brightness > /sys/class/leds/${sysfs}/brightness
+		[ "$default" = 1 ] && {
+			[ -z "$brightness" ] && brightness="$(cat /sys/class/leds/${sysfs}/max_brightness)"
+			echo "$brightness" > /sys/class/leds/${sysfs}/brightness
+		}
 
 		led_color_set "$1" "$sysfs"