linux-kernel - Re: [PATCH] leds: ledtrig-timer: fix broken sysfs delay handling

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Message-Id: <201109051955.43420.f.fainelli@gmail.com>
Date:	Mon, 5 Sep 2011 19:55:43 +0200
From:	Florian Fainelli <f.fainelli@...il.com>
To:	Johan Hovold <jhovold@...il.com>
Cc:	Richard Purdie <rpurdie@...ys.net>,
	Johannes Berg <johannes.berg@...el.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, stable@...nel.org
Subject: Re: [PATCH] leds: ledtrig-timer: fix broken sysfs delay handling

On Monday 05 September 2011 17:33:03 Johan Hovold wrote:
> Fix regression introduced by commit
> 5ada28bf76752e33dce3d807bf0dfbe6d1b943ad (led-class: always implement
> blinking) which broke sysfs delay handling by not storing the updated
> value. Consequently it was only possible to set one of the delays
> through the sysfs interface as the other delay was automatically
> restored to it's default value. Reading the parameters always gave the
> defaults.
> 
> Cc: stable@...nel.org
> Signed-off-by: Johan Hovold <jhovold@...il.com>

Acked-by: Florian Fainelli <florian@...nwrt.org>

> ---
>  drivers/leds/ledtrig-timer.c |    2 ++
>  1 files changed, 2 insertions(+), 0 deletions(-)
> 
> diff --git a/drivers/leds/ledtrig-timer.c b/drivers/leds/ledtrig-timer.c
> index d87c9d0..328c64c 100644
> --- a/drivers/leds/ledtrig-timer.c
> +++ b/drivers/leds/ledtrig-timer.c
> @@ -41,6 +41,7 @@ static ssize_t led_delay_on_store(struct device *dev,
> 
>  	if (count == size) {
>  		led_blink_set(led_cdev, &state, &led_cdev->blink_delay_off);
> +		led_cdev->blink_delay_on = state;
>  		ret = count;
>  	}
> 
> @@ -69,6 +70,7 @@ static ssize_t led_delay_off_store(struct device *dev,
> 
>  	if (count == size) {
>  		led_blink_set(led_cdev, &led_cdev->blink_delay_on, &state);
> +		led_cdev->blink_delay_off = state;
>  		ret = count;
>  	}

-- 
Florian
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