linux-kernel - Re: [PATCH 09/19] mfd/twl4030: don't warn about uninitialized return code

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Date:	Sun, 27 Jan 2013 01:42:00 +0100
From:	Samuel Ortiz <sameo@...ux.intel.com>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	Kevin Hilman <khilman@...prootsystems.com>,
	"Kristo, Tero" <t-kristo@...com>
Subject: Re: [PATCH 09/19] mfd/twl4030: don't warn about uninitialized return
 code

Hi Arnd,

On Fri, Jan 25, 2013 at 10:44:08PM +0000, Arnd Bergmann wrote:
> If the twl4030_write_script function gets called with
> a zero length argument, its return value does not
> get set. We know that all scripts have a nonzero
> length, but returning an error in case they ever
> do is probably appropriate.
> 
> Without this patch, building omap2plus_defconfig results in:
> 
> drivers/mfd/twl4030-power.c: In function 'load_twl4030_script':
> drivers/mfd/twl4030-power.c:414:5: error: 'err' may be used uninitialized in this function
> 
> Signed-off-by: Arnd Bergmann <arnd@...db.de>
> Reviewed-by: Peter Ujfalusi <peter.ujfalusi@...com>
> Reviewed-by: Amit Kucheria <amit.kucheria@...aro.org>
> Cc: Samuel Ortiz <sameo@...ux.intel.com>
> Cc: Kevin Hilman <khilman@...prootsystems.com>
> Cc: "Kristo, Tero" <t-kristo@...com>
> ---
>  drivers/mfd/twl4030-power.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Applied to my for-linus branch, thanks.

Cheers,
Samuel.

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