linux-kernel - Re: [PATCH] staging: zsmalloc: fix uninit'ed variable warning

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Date:	Thu, 14 Jun 2012 10:35:36 +0900
From:	Minchan Kim <minchan@...nel.org>
To:	Seth Jennings <sjenning@...ux.vnet.ibm.com>
CC:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Nitin Gupta <ngupta@...are.org>,
	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
	devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	"linux-mm@...ck.org" <linux-mm@...ck.org>
Subject: Re: [PATCH] staging: zsmalloc: fix uninit'ed variable warning

Hi Seth,

On 06/14/2012 06:03 AM, Seth Jennings wrote:

> This patch fixes an uninitialized variable warning in
> alloc_zspage().  It also fixes the secondary issue of
> prev_page leaving scope on each loop iteration.  The only
> reason this ever worked was because prev_page was occupying
> the same space on the stack on each iteration.
> 
> Signed-off-by: Seth Jennings <sjenning@...ux.vnet.ibm.com>


Nice catch!

Acked-by: Minchan Kim <minchan@...nel.org>

Nitpick:
I can't see the warning.
My gcc version is gcc (Ubuntu/Linaro 4.6.3-1ubuntu5) 4.6.3.

Please, Cced linux-mm, too.
Some guys in mm might have a interest in zsmalloc. :)

-- 
Kind regards,
Minchan Kim
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