linux-kernel - Re: [PATCH] devres: WARN() and return, don't crash on device

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Date:	Wed, 27 May 2009 08:23:30 +1000
From:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	linux-kernel@...r.kernel.org, greg@...ah.com,
	Kay Sievers <kay.sievers@...y.org>, Tejun Heo <tj@...nel.org>
Subject: Re: [PATCH] devres: WARN() and return, don't crash on device_del()
 of uninitialized device

On Tue, 2009-05-26 at 14:15 -0700, Andrew Morton wrote:
> 
> This could be coded a little more neatly as:
> 
>         /* Looks like an uninitialized device structure */
>         if (WARN_ON(dev->devres_head.next == NULL))
>                 return -ENODEV;

Oh I didn't know we could do that nowadays...

Cheers,
Ben.


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