Re: [PATCH] pata_pxa.c: fix missing return value check of devm_ioremap()

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To: Jiecheng Wu <jasonwood2031@xxxxxxxxx>
Subject: Re: [PATCH] pata_pxa.c: fix missing return value check of devm_ioremap()
From: Tejun Heo <tj@xxxxxxxxxx>
Date: Tue, 21 Aug 2018 08:38:16 -0700
Cc: linux-ide@xxxxxxxxxxxxxxx
In-reply-to: <20180818023056.11472-1-jasonwood2031@gmail.com>
References: <20180818023056.11472-1-jasonwood2031@gmail.com>
User-agent: Mutt/1.5.21 (2010-09-15)

On Sat, Aug 18, 2018 at 10:30:56AM +0800, Jiecheng Wu wrote:
> Function pxa_ata_probe() defined in drivers/ata/pata_pxa.c calls devm_ioremap() which may return NULL on failure, this code piece may cause NULL pointer dereference bug.

Can you please add your Signed-off-by and repost?

Thanks.

-- 
tejun

References:
- [PATCH] pata_pxa.c: fix missing return value check of devm_ioremap()
  - From: Jiecheng Wu

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