linux-kernel - Re: [patch 3/3] acpi: check for pxm_to_node

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Date:	Fri, 2 Jan 2009 10:23:30 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Cyrill Gorcunov <gorcunov@...il.com>
Cc:	hpa@...or.com, linux-kernel@...r.kernel.org, tglx@...utronix.de,
	Cyrill Gorcunov <gorcunov@...nvz.org>,
	Len Brown <lenb@...nel.org>
Subject: Re: [patch 3/3] acpi: check for pxm_to_node_map overflow


* Cyrill Gorcunov <gorcunov@...il.com> wrote:

> It is hardly (if ever) possible but in case of broken _PXM
> entry we could reach out of pxm_to_node_map array
> bounds in acpi_map_pxm_to_node() call. Lets check it
> (it's not that expensive and safe).
> 
> Signed-off-by: Cyrill Gorcunov <gorcunov@...nvz.org>
> CC: Len Brown <lenb@...nel.org>
> ---
>  drivers/acpi/numa.c |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

just curious - how did you find this - code review or some tool help like 
Sparse output or a compiler warning?

	Ingo
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