linux-kernel - Re: [PATCH] ARM: imx: fix the return value check in imx_clk_busy

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Message-ID: <20121008105641.GP1322@pengutronix.de>
Date:	Mon, 8 Oct 2012 12:56:41 +0200
From:	Sascha Hauer <s.hauer@...gutronix.de>
To:	Wei Yongjun <weiyj.lk@...il.com>
Cc:	kernel@...gutronix.de, linux@....linux.org.uk,
	yongjun_wei@...ndmicro.com.cn,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ARM: imx: fix the return value check in
 imx_clk_busy_divider()

On Fri, Sep 21, 2012 at 02:14:25PM +0800, Wei Yongjun wrote:
> From: Wei Yongjun <yongjun_wei@...ndmicro.com.cn>
> 
> In case of error, the function clk_register() returns ERR_PTR()
> no NULL pointer. The NULL test in the return value check should
> be replaced with IS_ERR().
> 
> dpatch engine is used to auto generated this patch.
> (https://github.com/weiyj/dpatch)
> 
> Signed-off-by: Wei Yongjun <yongjun_wei@...ndmicro.com.cn>

Applied, thanks

Sascha

> ---
>  arch/arm/mach-imx/clk-busy.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/arm/mach-imx/clk-busy.c b/arch/arm/mach-imx/clk-busy.c
> index 1a7a8dd..1ab91b5 100644
> --- a/arch/arm/mach-imx/clk-busy.c
> +++ b/arch/arm/mach-imx/clk-busy.c
> @@ -108,7 +108,7 @@ struct clk *imx_clk_busy_divider(const char *name, const char *parent_name,
>  	busy->div.hw.init = &init;
>  
>  	clk = clk_register(NULL, &busy->div.hw);
> -	if (!clk)
> +	if (IS_ERR(clk))
>  		kfree(busy);
>  
>  	return clk;
> 
> 
> 

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