openwrt/target/linux/generic/backport-6.1/825-v6.5-leds-trigger-netdev-uninitialized-variable-in-netdev.patch

From 97c5209b3d374a25ebdb4c2ea9e9c1b121768da0 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@linaro.org>
Date: Wed, 14 Jun 2023 10:03:59 +0300
Subject: [PATCH] leds: trigger: netdev: uninitialized variable in
 netdev_trig_activate()

The qca8k_cled_hw_control_get() function which implements ->hw_control_get
sets the appropriate bits but does not clear them.  This leads to an
uninitialized variable bug.  Fix this by setting mode to zero at the
start.

Fixes: e0256648c831 ("net: dsa: qca8k: implement hw_control ops")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Lee Jones <lee@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/leds/trigger/ledtrig-netdev.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/leds/trigger/ledtrig-netdev.c
+++ b/drivers/leds/trigger/ledtrig-netdev.c
@@ -538,7 +538,7 @@ static void netdev_trig_work(struct work
 static int netdev_trig_activate(struct led_classdev *led_cdev)
 {
 	struct led_netdev_data *trigger_data;
-	unsigned long mode;
+	unsigned long mode = 0;
 	struct device *dev;
 	int rc;