linux-kernel - Re: [PATCH] AHCI: fix Null pointer dereference in achi_host

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Date:	Tue, 16 Jul 2013 15:48:16 +0400
From:	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
To:	Xiaotian Feng <xtfeng@...il.com>
CC:	unlisted-recipients:; Alexander Gordeev <agordeev@...hat.com>,
	Tejun Heo <tj@...nel.org>, linux-ide@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] AHCI: fix Null pointer dereference in achi_host_active()

Hello.

On 16-07-2013 9:18, Xiaotian Feng wrote:

> commit b29900e6 introuded a regression, which resulted Null pointer

    Please also specify that commit's summary in parens.

> dereference for achi host with dummy ports. For ahci ports, when the
> port is dummy port, its private_data will be NULL, as ata_dummy_port_ops
> doesn't support ->port_start.

> Reported-and-tested-by: Alex Williamson <alex.williamson@...hat.com>
> Signed-off-by: Xiaotian Feng <xtfeng@...il.com>
> Cc: Alexander Gordeev <agordeev@...hat.com>
> Cc: Tejun Heo <tj@...nel.org>
> Cc: linux-ide@...r.kernel.org
> Cc: linux-kernel@...r.kernel.org

MBR, Sergei


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