linux-kernel - Re: [PATCH 1/2] mmc: core: bus.c: removed unnecessary NULL check for kfree(...)

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Date:	Fri, 19 Oct 2012 16:53:54 +0200
From:	Philip Rakity <prakity@...dia.com>
To:	Sangho Yi <antiroot@...il.com>
CC:	"aaron.lu@....com" <aaron.lu@....com>,
	"linus.walleij@...aro.org" <linus.walleij@...aro.org>,
	"paul.gortmaker@...driver.com" <paul.gortmaker@...driver.com>,
	"chuanxiao.dong@...el.com" <chuanxiao.dong@...el.com>,
	"cjb@...top.org" <cjb@...top.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-mmc@...r.kernel.org" <linux-mmc@...r.kernel.org>
Subject: Re: [PATCH 1/2] mmc: core: bus.c: removed unnecessary NULL check
 for kfree(...)


On 19 Oct 2012, at 14:58, Sangho Yi <antiroot@...il.com> wrote:

> kfree(NULL) is safe so I removed the if statements for NULL check.
> 
> Signed-off-by: Sangho Yi <antiroot@...il.com>
> ---
> drivers/mmc/core/bus.c |    3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/drivers/mmc/core/bus.c b/drivers/mmc/core/bus.c
> index 9b68933..420cb67 100644
> --- a/drivers/mmc/core/bus.c
> +++ b/drivers/mmc/core/bus.c
> @@ -225,8 +225,7 @@ static void mmc_release_card(struct device *dev)
> 
> 	sdio_free_common_cis(card);
> 
> -	if (card->info)
> -		kfree(card->info);
> +	kfree(card->info);
> 
> 	kfree(card);
> }
> -- 
> 1.7.9.5

Reviewed-by: Philip Rakity <prakity@...dia.com>
> 
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