[PATCH] leds: triggers: Check return value of kobject_uevent_env()
From: Jacek Anaszewski <hidden>
Date: 2016-09-19 08:23:47
Also in:
lkml
Subsystem:
led subsystem, the rest · Maintainers:
Lee Jones, Pavel Machek, Linus Torvalds
From: Jacek Anaszewski <jacek.anaszewski@gmail.com> Log error message if kobject_uevent_env() fails in led_trigger_set(). Signed-off-by: Jacek Anaszewski <redacted> --- drivers/leds/led-triggers.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/leds/led-triggers.c b/drivers/leds/led-triggers.c
index c7a38d4..f538e8c 100644
--- a/drivers/leds/led-triggers.c
+++ b/drivers/leds/led-triggers.c@@ -141,7 +141,8 @@ 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)) + pr_err("Error sending uevent after setting LED trigger\n"); kfree(event); } }
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1.9.1