linux-kernel - Re: [PATCH v3] i2c: busses: i2c-pxa.c: Fix for possible null pointer dereferenc

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Date:	Thu, 10 Jul 2014 14:02:02 +0200
From:	Wolfram Sang <wsa@...-dreams.de>
To:	Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se>
Cc:	Emil Goode <emilgoode@...il.com>,
	Grant Likely <grant.likely@...aro.org>,
	Rob Herring <robh+dt@...nel.org>,
	Jingoo Han <jg1.han@...sung.com>,
	Leilei Shang <shangll@...vell.com>,
	Peter Korsgaard <peter@...sgaard.com>,
	linux-i2c@...r.kernel.org,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>
Subject: Re: [PATCH v3] i2c: busses: i2c-pxa.c: Fix for possible null pointer
 dereferenc


> Ok then, Wolfram!
> 
> Keep only:
> 
> ereqirq:
>      clk_disable_unprepare(i2c->clk);
> 
> And let everyone else just return?

I haven't looked at the details, but when you simply can return, do it.

> It is rather pointless to add something in a patch, to remove it in the next.

Yup, just say in the patch description that it fixes this bug.


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