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>

1 files changed, 3 insertions, 1 deletions

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);
         }
 }