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Groups > linux.kernel > #1487106
| From | Greg KH <greg@kroah.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH v3] leds: triggers: Check return value of kobject_uevent_env() |
| Date | 2016-09-20 09:10 +0200 |
| Message-ID | <sjnlM-8eo-7@gated-at.bofh.it> (permalink) |
| References | <sj4sN-4oK-1@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Mon, Sep 19, 2016 at 12:52:24PM +0200, Jacek Anaszewski wrote:
> Log error message if kobject_uevent_env() fails in led_trigger_set().
>
> Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
> ---
> Changes from v1:
> - switched to using dev_err() instead of pr_err()
> Changes from v2:
> - switched to using __func__ instead of explicit function name,
> to simplify code maintenance
>
> drivers/leds/led-triggers.c | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/leds/led-triggers.c b/drivers/leds/led-triggers.c
> index c7a38d4..431123b 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);
> }
> }
> --
> 1.9.1
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[PATCH v3] leds: triggers: Check return value of kobject_uevent_env() Jacek Anaszewski <j.anaszewski@samsung.com> - 2016-09-19 13:00 +0200 Re: [PATCH v3] leds: triggers: Check return value of kobject_uevent_env() Greg KH <greg@kroah.com> - 2016-09-20 09:10 +0200
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