linux-kernel - Re: [PATCH] dell-laptop: Fix allocating & freeing SMI buffer page

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Message-ID: <20150625032341.GA18285@vmdeb7>
Date:	Wed, 24 Jun 2015 20:23:41 -0700
From:	Darren Hart <dvhart@...radead.org>
To:	Pali Rohár <pali.rohar@...il.com>
Cc:	Matthew Garrett <mjg59@...f.ucam.org>,
	Michal Hocko <mhocko@...e.cz>,
	platform-driver-x86@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org, stable@...r.kernel.org
Subject: Re: [PATCH] dell-laptop: Fix allocating & freeing SMI buffer page

On Tue, Jun 23, 2015 at 10:11:19AM +0200, Pali Rohár wrote:
> This commit fix kernel crash when probing for rfkill devices in dell-laptop
> driver failed. Function free_page() was incorrectly used on struct page *
> instead of virtual address of SMI buffer.
> 
> This commit also simplify allocating page for SMI buffer by using
> __get_free_page() function instead of sequential call of functions
> alloc_page() and page_address().
> 
> Signed-off-by: Pali Rohár <pali.rohar@...il.com>
> Acked-by: Michal Hocko <mhocko@...e.cz>
> Cc: stable@...r.kernel.org

Queued, thanks Pali.

-- 
Darren Hart
Intel Open Source Technology Center
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