linux-kernel - Re: [PATCH 2/5] drivers/video/bfin-t350mcqb-fb.c: use devm

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Date:	Tue, 31 Jul 2012 18:18:08 +0200
From:	Damien Cassou <damien.cassou@...il.com>
To:	Mike Frysinger <vapier@...too.org>
Cc:	Florian Tobias Schandinat <FlorianSchandinat@....de>,
	kernel-janitors@...r.kernel.org, linux-fbdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/5] drivers/video/bfin-t350mcqb-fb.c: use devm_ functions

On Tue, Jul 31, 2012 at 3:57 PM, Mike Frysinger <vapier@...too.org> wrote:
> On Tue, Jul 31, 2012 at 9:54 AM, Damien Cassou <damien.cassou@...l.fr> wrote:
>> The various devm_ functions allocate memory that is released when a driver
>> detaches.  This patch uses these functions for data that is allocated in
>> the probe function of a platform device and is only freed in the remove
>> function.
>
> Acked-by: Mike Frysinger <vapier@...too.org>

This whole patch is invalid, because of this part:

-	info->fb_buffer = dma_alloc_coherent(NULL, fbinfo->fix.smem_len +
-				ACTIVE_VIDEO_MEM_OFFSET,
-				&info->dma_handle, GFP_KERNEL);
+	info->fb_buffer = dmam_alloc_coherent(&pdev->dev, NULL,
+					      fbinfo->fix.smem_len +
+					      ACTIVE_VIDEO_MEM_OFFSET,
+					      &info->dma_handle, GFP_KERNEL);


dmam_alloc_coherent() is called with 5 arguments but only accepts 4.

Please ignore this whole patch altogether.

I am sorry about that.

-- 
Damien Cassou
http://damiencassou.seasidehosting.st

"Lambdas are relegated to relative obscurity until Java makes them
popular by not having them." James Iry
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