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leds: triggers: Check return value of kobject_uevent_env()
author
Jacek Anaszewski
<j.anaszewski@samsung.com>
Mon, 19 Sep 2016 10:44:50 +0000
(12:44 +0200)
committer
Jacek Anaszewski
<j.anaszewski@samsung.com>
Tue, 20 Sep 2016 08:22:10 +0000
(10:22 +0200)
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>
drivers/leds/led-triggers.c
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diff --git
a/drivers/leds/led-triggers.c
b/drivers/leds/led-triggers.c
index
c7a38d4
..
431123b
100644
(file)
--- 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);
}
}