linux-kernel - Re: [PATCH] drivers: input: mouse: Remove useless casting in cypress

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Message-ID: <20131016184133.GB21932@core.coreip.homeip.net>
Date:	Wed, 16 Oct 2013 11:41:34 -0700
From:	Dmitry Torokhov <dmitry.torokhov@...il.com>
To:	"Geyslan G. Bem" <geyslan@...il.com>
Cc:	dudl@...ress.com, kamal@...onical.com, mario_limonciello@...l.com,
	git@...tus.e4ward.com, linux-input@...r.kernel.org,
	linux-kernel@...r.kernel.org, kernel-br@...glegroups.com
Subject: Re: [PATCH] drivers: input: mouse: Remove useless casting in
 cypress_ps2.c

Hi Geyslan,

On Wed, Oct 16, 2013 at 01:05:12PM -0300, Geyslan G. Bem wrote:
> Casting (void *) value returned by kzalloc is useless
> as mentioned in Documentation/CodingStyle, Chap 14.
> 
> Signed-off-by: Geyslan G. Bem <geyslan@...il.com>
> ---
>  drivers/input/mouse/cypress_ps2.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/input/mouse/cypress_ps2.c b/drivers/input/mouse/cypress_ps2.c
> index f51765f..ef651cc 100644
> --- a/drivers/input/mouse/cypress_ps2.c
> +++ b/drivers/input/mouse/cypress_ps2.c
> @@ -679,7 +679,7 @@ int cypress_init(struct psmouse *psmouse)
>  {
>  	struct cytp_data *cytp;
>  
> -	cytp = (struct cytp_data *)kzalloc(sizeof(struct cytp_data), GFP_KERNEL);
> +	cytp = kzalloc(sizeof(struct cytp_data), GFP_KERNEL);

I already have a patch for this from Jingoo Han in my queue.

>  	psmouse->private = (void *)cytp;

But this cast is also not needed, so if you could send me a patch for it
I'd appreciate that.

>  	if (cytp == NULL)
>  		return -ENOMEM;
> -- 
> 1.8.4
> 

Thanks.

-- 
Dmitry
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