linux-kernel - Re: [PATCH 2/4] i810: delete useless variable

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Date:	Tue, 14 Jan 2014 10:06:18 +0200
From:	Tomi Valkeinen <tomi.valkeinen@...com>
To:	Julia Lawall <Julia.Lawall@...6.fr>
CC:	Antonino Daplas <adaplas@...il.com>,
	<kernel-janitors@...r.kernel.org>,
	Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>,
	<linux-fbdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/4] i810: delete useless variable

On 2014-01-13 18:17, Julia Lawall wrote:
> From: Julia Lawall <Julia.Lawall@...6.fr>
> 
> Delete a variable that is at most only assigned to a constant, but never
> used otherwise.
> 
> A simplified version of the semantic patch that fixes this problem is as
> follows: (http://coccinelle.lip6.fr/)
> 
> // <smpl>
> @@
> type T;
> identifier i;
> constant c;
> @@
> 
> -T i;
> <... when != i
> -i = c;
> ...>
> // </smpl>
> 
> Signed-off-by: Julia Lawall <Julia.Lawall@...6.fr>
> 
> ---
>  drivers/video/i810/i810_main.c |    4 +---
>  1 file changed, 1 insertion(+), 3 deletions(-)
> 
> diff --git a/drivers/video/i810/i810_main.c b/drivers/video/i810/i810_main.c
> index 038192a..bb674e4 100644
> --- a/drivers/video/i810/i810_main.c
> +++ b/drivers/video/i810/i810_main.c
> @@ -2011,9 +2011,7 @@ static int i810fb_init_pci(struct pci_dev *dev,
>  	struct fb_info    *info;
>  	struct i810fb_par *par = NULL;
>  	struct fb_videomode mode;
> -	int i, err = -1, vfreq, hfreq, pixclock;
> -
> -	i = 0;
> +	int err = -1, vfreq, hfreq, pixclock;
>  
>  	info = framebuffer_alloc(sizeof(struct i810fb_par), &dev->dev);
>  	if (!info)
> 

Thanks, queued for 3.14.

 Tomi



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