linux-kernel - Re: [PATCH] ACPI: Fix potential NULL pointer dereference in acpi_processor

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Message-ID: <2969934.XTKV7y9VVT@vostro.rjw.lan>
Date:	Thu, 30 May 2013 15:57:58 +0200
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Hanjun Guo <hanjun.guo@...aro.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:	Martin Mokrejs <mmokrejs@...d.natur.cuni.cz>,
	linux-acpi@...r.kernel.org, linux-kernel@...r.kernel.org,
	patches@...aro.org, linaro-kernel@...ts.linaro.org
Subject: Re: [PATCH] ACPI: Fix potential NULL pointer dereference in acpi_processor_add()

On Thursday, May 30, 2013 10:29:54 AM Hanjun Guo wrote:
> On 2013-5-29 19:07, Martin Mokrejs wrote:
> > Hanjun Guo wrote:
> >> On 2013-5-29 7:30, Rafael J. Wysocki wrote:
> >>> On Thursday, May 23, 2013 08:44:26 PM Hanjun Guo wrote:
> >>>> In acpi_processor_add(), get_cpu_device() will return NULL sometimes,
> >>>> although the chances are small, I think it should be fixed.
> >>>>
> >>>> Signed-off-by: Hanjun Guo <hanjun.guo@...aro.org>
> >>>
> >>> This patch isn't necessary any more after the changes queued up for 3.11
> >>> in the acpi-hotplug branch of the linux-pm.git tree.
> >>
> >> Ok, I noticed your patch set, just drop my patch.
> > 
> > But shouldn't this go to stable at least? I checked linux-3.9.4
> > and it applies fine. Whether this is relevant for other stable
> > series I will leave up to somebody else. ;)
> 
> Hi Rafeal,
> 
> What's your opinion on Martin's suggestion?

Well, this is kind of hard to say.  We generally don't apply patches to -stable
that don't have mainline counterparts.

Greg, I wonder what your opinion is?

Rafael


-- 
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.
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