linux-kernel - Re: [RFT PATCH] gpio: etraxfs: Fix devm_ioremap

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Message-ID: <20150716173658.GA1824@debian>
Date:	Thu, 16 Jul 2015 19:36:58 +0200
From:	Rabin Vincent <rabin@....in>
To:	Krzysztof Kozlowski <k.kozlowski.k@...il.com>
Cc:	Linus Walleij <linus.walleij@...aro.org>,
	Alexandre Courbot <gnurou@...il.com>,
	linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Subject: Re: [RFT PATCH] gpio: etraxfs: Fix devm_ioremap_resource return
 value check

On Thu, Jul 09, 2015 at 10:19:53PM +0900, Krzysztof Kozlowski wrote:
> Value returned by devm_ioremap_resource() was checked for non-NULL but
> devm_ioremap_resource() returns IOMEM_ERR_PTR, not NULL. In case of
> error this could lead to dereference of ERR_PTR.
> 
> Signed-off-by: Krzysztof Kozlowski <k.kozlowski.k@...il.com>
> Fixes: d342571efea8 ("gpio: add ETRAXFS GPIO driver")

Acked-by: Rabin Vincent <rabin@....in>

> Cc: <stable@...r.kernel.org>

I don't think this demands a stable backport though.
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