linux-kernel - Re: [PATCH] mfd: Fix test of unsigned in twl4030_configure

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Date:	Tue, 5 Jan 2010 20:23:02 +0100
From:	Samuel Ortiz <sameo@...ux.intel.com>
To:	Roel Kluin <roel.kluin@...il.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>, amit.kucheria@...durent.com
Subject: Re: [PATCH] mfd: Fix test of unsigned in
 twl4030_configure_resource()

Hi Roel,

On Wed, Dec 16, 2009 at 02:44:15PM +0100, Roel Kluin wrote:
> devgroup is unsigned so the test did not work.
This one was fixed with commit 56baa667973e53d6d38af2ad3731d558566d818b.

Cheers,
Samuel.


> Signed-off-by: Roel Kluin <roel.kluin@...il.com>
> ---
> Found using coccinelle: http://coccinelle.lip6.fr/
> 
> see
> vi arch/arm/mach-omap2/board-rx51-peripherals.c +512
> 
> Oops, missed some in previous patch.
> 
> Roel
> 
> diff --git a/drivers/mfd/twl4030-power.c b/drivers/mfd/twl4030-power.c
> index d423e0c..cc984a5 100644
> --- a/drivers/mfd/twl4030-power.c
> +++ b/drivers/mfd/twl4030-power.c
> @@ -335,7 +335,7 @@ static int __init twl4030_configure_resource(struct twl4030_resconfig *rconfig)
>  		return err;
>  	}
>  
> -	if (rconfig->devgroup >= 0) {
> +	if (rconfig->devgroup != -1) {
>  		grp &= ~DEVGROUP_MASK;
>  		grp |= rconfig->devgroup << DEVGROUP_SHIFT;
>  		err = twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER,
> @@ -355,12 +355,12 @@ static int __init twl4030_configure_resource(struct twl4030_resconfig *rconfig)
>  		return err;
>  	}
>  
> -	if (rconfig->type >= 0) {
> +	if (rconfig->type != -1) {
>  		type &= ~TYPE_MASK;
>  		type |= rconfig->type << TYPE_SHIFT;
>  	}
>  
> -	if (rconfig->type2 >= 0) {
> +	if (rconfig->type2 != -1) {
>  		type &= ~TYPE2_MASK;
>  		type |= rconfig->type2 << TYPE2_SHIFT;
>  	}

-- 
Intel Open Source Technology Centre
http://oss.intel.com/
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