linux-kernel - Re: [PATCH 1/2] regulator: anatop-regulator: Remove unneeded check

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Message-ID: <20131221074900.GA6849@S2101-09.ap.freescale.net>
Date:	Sat, 21 Dec 2013 15:49:10 +0800
From:	Shawn Guo <shawn.guo@...aro.org>
To:	Fabio Estevam <festevam@...il.com>
Cc:	broonie@...nel.org, b20788@...escale.com,
	linux-kernel@...r.kernel.org,
	Fabio Estevam <fabio.estevam@...escale.com>
Subject: Re: [PATCH 1/2] regulator: anatop-regulator: Remove unneeded check

On Fri, Dec 20, 2013 at 11:42:09AM -0200, Fabio Estevam wrote:
> From: Fabio Estevam <fabio.estevam@...escale.com>
> 
> At the 'anatop_probe_end' error path, the variable 'ret' is known to be
> non-zero, so there is no need to check it.
> 
> Signed-off-by: Fabio Estevam <fabio.estevam@...escale.com>
> ---
>  drivers/regulator/anatop-regulator.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/drivers/regulator/anatop-regulator.c b/drivers/regulator/anatop-regulator.c
> index c734d09..0a3597b 100644
> --- a/drivers/regulator/anatop-regulator.c
> +++ b/drivers/regulator/anatop-regulator.c
> @@ -211,8 +211,7 @@ static int anatop_regulator_probe(struct platform_device *pdev)
>  	platform_set_drvdata(pdev, rdev);
>  
>  anatop_probe_end:
> -	if (ret)
> -		kfree(sreg->name);
> +	kfree(sreg->name);

NAK

With the change, a successful probe will end up with calling this
kfree() as well.

Shawn

>  
>  	return ret;
>  }
> -- 
> 1.8.1.2
> 
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