linux-kernel - Re: [patch 7/9] lguest: the net driver

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Message-ID: <20070509210904.GA20064@infradead.org>
Date:	Wed, 9 May 2007 22:09:04 +0100
From:	Christoph Hellwig <hch@...radead.org>
To:	Rusty Russell <rusty@...tcorp.com.au>
Cc:	Jeff Garzik <jeff@...zik.org>, akpm@...ux-foundation.org,
	linux-kernel@...r.kernel.org, virtualization@...ts.osdl.org,
	ak@...e.de, jmorris@...ei.org
Subject: Re: [patch 7/9] lguest: the net driver

On Thu, May 10, 2007 at 01:14:55AM +1000, Rusty Russell wrote:
> > > +	info->peer = (void *)ioremap(info->peer_phys, info->mapsize);
> > 
> > check for NULL
> 
> Erk, good catch!

Also the cast is bogus.  ioremap already returns void already.  Even
more importantly the lack of the __iomem annotations shows that either this
code hasn't been run through sparse or someone decided to ignore it's
errors.

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