From: Jacek Anaszewski <j.anaszewski@samsung.com>
Date: Mon, 19 Sep 2016 10:44:50 +0000 (+0200)
Subject: leds: triggers: Check return value of kobject_uevent_env()
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=6f3bad9670729ea3a7c78b3752a89c94ffa2397a;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

leds: triggers: Check return value of kobject_uevent_env()

Log error message if kobject_uevent_env() fails in led_trigger_set().

Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/leds/led-triggers.c b/drivers/leds/led-triggers.c
index c7a38d43ff62..431123b048a2 100644
--- a/drivers/leds/led-triggers.c
+++ b/drivers/leds/led-triggers.c
@@ -141,7 +141,9 @@ void led_trigger_set(struct led_classdev *led_cdev, struct led_trigger *trig)
 	if (event) {
 		envp[0] = event;
 		envp[1] = NULL;
-		kobject_uevent_env(&led_cdev->dev->kobj, KOBJ_CHANGE, envp);
+		if (kobject_uevent_env(&led_cdev->dev->kobj, KOBJ_CHANGE, envp))
+			dev_err(led_cdev->dev,
+				"%s: Error sending uevent\n", __func__);
 		kfree(event);
 	}
 }