linux-kernel - Re: LEDS: S3C24XX generate name if none given

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Date:	Tue, 16 Jan 2007 19:06:11 +0000
From:	Richard Purdie <rpurdie@...ys.net>
To:	Ben Dooks <ben@...nity.fluff.org>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: LEDS: S3C24XX generate name if none given

On Mon, 2007-01-15 at 15:42 +0000, Ben Dooks wrote:
> On Mon, Jan 15, 2007 at 01:44:28PM +0000, Richard Purdie wrote:
> > On Mon, 2007-01-15 at 12:26 +0000, Ben Dooks wrote:
> > > Generate a name if none is passed to the S3C24XX GPIO LED driver.
> > > 
> > > Signed-off-by: Ben Dooks <ben-linux@...ff.org>
> > > 
>
> Ok, how about using kstrdup() on the name, like this:

Much better, thanks.

Acked-by: Richard Purdie <rpurdie@...ys.net>

Creating a git tree to handle the LED patches properly is on my todo
list...

> diff -urpN -X ../dontdiff linux-2.6.19/drivers/leds/leds-s3c24xx.c linux-2.6.19-simtec1p22/drivers/leds/leds-s3c24xx.c
> --- linux-2.6.19/drivers/leds/leds-s3c24xx.c	2006-11-29 21:57:37.000000000 +0000
> +++ linux-2.6.19-simtec1p22/drivers/leds/leds-s3c24xx.c	2007-01-15 15:26:05.000000000 +0000
> @@ -59,6 +59,9 @@ static int s3c24xx_led_remove(struct pla
>  {
>  	struct s3c24xx_gpio_led *led = pdev_to_gpio(dev);
>  
> +	if (led->cdev.name != led->pdata.name)
> +		kfree(led->cdev.name);
> +
>  	led_classdev_unregister(&led->cdev);
>  	kfree(led);
>  
> @@ -85,6 +88,15 @@ static int s3c24xx_led_probe(struct plat
>  
>  	led->pdata = pdata;
>  
> +	/* create name if we were not passed one */
> +
> +	if (led->cdev.name == NULL) {
> +		char name[64];
> +
> +		snprintf(name, sizeof(name), "%s.%d",  dev->name, dev->id);
> +		led->cdev.name = kstrdup(name);
> +	}
> +
>  	/* no point in having a pull-up if we are always driving */
>  
>  	if (pdata->flags & S3C24XX_LEDF_TRISTATE) {
> 
> 

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