linux-kernel - Re: [PATCH][V2] pinctrl: mediatek: mtk-common: initialize unmask

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Date:	Mon, 4 May 2015 15:20:47 +0200
From:	Linus Walleij <linus.walleij@...aro.org>
To:	Colin King <colin.king@...onical.com>
Cc:	Matthias Brugger <matthias.bgg@...il.com>,
	Hongzhou Yang <hongzhou.yang@...iatek.com>,
	Yingjoe Chen <yingjoe.chen@...iatek.com>,
	Axel Lin <axel.lin@...ics.com>,
	Maoguang Meng <maoguang.meng@...iatek.com>,
	"linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	linux-mediatek@...ts.infradead.org,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
Subject: Re: [PATCH][V2] pinctrl: mediatek: mtk-common: initialize unmask

On Mon, Apr 20, 2015 at 5:59 PM, Colin King <colin.king@...onical.com> wrote:

> From: Colin Ian King <colin.king@...onical.com>
>
> cppcheck detected an uninitialized variable:
>
> [drivers/pinctrl/mediatek/pinctrl-mtk-common.c:897]:
>   (error) Uninitialized variable: unmask
>
> unmask should be initialized to zero to ensure unmasking
> only occurs if a previous mask occurred. The current situation
> is that the unmask variable could contain any random garbage
> causing random unexpected unmasking.
>
> Signed-off-by: Colin Ian King <colin.king@...onical.com>

Patch applied for fixes.

Yours,
Linus Walleij
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