netdev - Re: [PATCH] yam: avoid null pointer dereference error

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Date:	Wed, 27 Mar 2013 13:46:51 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	bhutchings@...arflare.com
Cc:	colin.king@...onical.com, jpr@...bb.org,
	linux-hams@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: [PATCH] yam: avoid null pointer dereference error

From: Ben Hutchings <bhutchings@...arflare.com>
Date: Wed, 27 Mar 2013 17:44:17 +0000

> On Wed, 2013-03-27 at 11:19 +0000, Colin King wrote:
>> From: Colin Ian King <colin.king@...onical.com>
>> 
>> yam_open checks if dev is null, however, before that check it
>> accesses some of the fields from dev in a proceeding printk which
>> will cause a null pointer dereference error if dev is nul. Move
>> the printk to after the null check.
> 
> This function will never be called with dev == NULL.

Then let's remove at least that part of the check.
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