linux-kernel - Re: [PATCH] appletouch: fix DMA to/from stack buffer

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Message-Id: <200905010636.36778.dmitry.torokhov@gmail.com>
Date:	Fri, 1 May 2009 06:36:36 -0700
From:	Dmitry Torokhov <dmitry.torokhov@...il.com>
To:	Johannes Berg <johannes@...solutions.net>
Cc:	Bob Copeland <me@...copeland.com>, linux-input@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] appletouch: fix DMA to/from stack buffer

On Tue, Apr 28, 2009 at 10:44:54AM +0200, Johannes Berg wrote:
> On Mon, 2009-04-27 at 21:58 -0400, Bob Copeland wrote:
> > CONFIG_DMA_API_DEBUG spotted an instance of appletouch using
> > an array on the stack as a DMA buffer for certain hardware.
> > Change it to use a kmalloc()ed buffer instead.
> > 
> > This fixes the following error:
> 
> > Signed-off-by: Bob Copeland <me@...copeland.com>
> 
> Reviewed-by: Johannes Berg <johannes@...solutions.net>
> 
> Interestingly, I first thought the GFP_KERNEL is wrong due to
> atp_reinit, but the GFP_ATOMIC in that is wrong instead :)
> 

Applied to 'for-linus' branch, thank you.

-- 
Dmitry

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