* [PATCH] leds: triggers: return error if invalid trigger name is provided via sysfs
@ 2016-07-01 21:08 Heiner Kallweit
2016-07-04 6:54 ` Jacek Anaszewski
0 siblings, 1 reply; 2+ messages in thread
From: Heiner Kallweit @ 2016-07-01 21:08 UTC (permalink / raw)
To: Jacek Anaszewski, linux-leds
If an invalid trigger name is provided via sysfs currently no error
is returned. Therefore it's not possible to determine whether the
trigger was set successfully.
Fix this by returning -EINVAL if no trigger is matched.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
---
drivers/leds/led-triggers.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/leds/led-triggers.c b/drivers/leds/led-triggers.c
index 55fa65e..c92702a 100644
--- a/drivers/leds/led-triggers.c
+++ b/drivers/leds/led-triggers.c
@@ -60,6 +60,8 @@ ssize_t led_trigger_store(struct device *dev, struct device_attribute *attr,
goto unlock;
}
}
+ /* we come here only if buf matches no trigger */
+ ret = -EINVAL;
up_read(&triggers_list_lock);
unlock:
--
2.9.0
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] leds: triggers: return error if invalid trigger name is provided via sysfs
2016-07-01 21:08 [PATCH] leds: triggers: return error if invalid trigger name is provided via sysfs Heiner Kallweit
@ 2016-07-04 6:54 ` Jacek Anaszewski
0 siblings, 0 replies; 2+ messages in thread
From: Jacek Anaszewski @ 2016-07-04 6:54 UTC (permalink / raw)
To: Heiner Kallweit; +Cc: linux-leds
Hi Heiner,
On 07/01/2016 11:08 PM, Heiner Kallweit wrote:
> If an invalid trigger name is provided via sysfs currently no error
> is returned. Therefore it's not possible to determine whether the
> trigger was set successfully.
> Fix this by returning -EINVAL if no trigger is matched.
>
> Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
> ---
> drivers/leds/led-triggers.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/drivers/leds/led-triggers.c b/drivers/leds/led-triggers.c
> index 55fa65e..c92702a 100644
> --- a/drivers/leds/led-triggers.c
> +++ b/drivers/leds/led-triggers.c
> @@ -60,6 +60,8 @@ ssize_t led_trigger_store(struct device *dev, struct device_attribute *attr,
> goto unlock;
> }
> }
> + /* we come here only if buf matches no trigger */
> + ret = -EINVAL;
> up_read(&triggers_list_lock);
>
> unlock:
>
Thanks for the patch. Applied.
--
Best regards,
Jacek Anaszewski
^ permalink raw reply [flat|nested] 2+ messages in thread
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2016-07-01 21:08 [PATCH] leds: triggers: return error if invalid trigger name is provided via sysfs Heiner Kallweit
2016-07-04 6:54 ` Jacek Anaszewski
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