linux-kernel - Re: [PATCH 1/3] mfd: ab8500-debugfs: Apply a check for -ENOMEM after allocating memory for sysfs

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Message-ID: <20130827104034.GA10210@lee--X1>
Date:	Tue, 27 Aug 2013 11:40:34 +0100
From:	Lee Jones <lee.jones@...aro.org>
To:	linux-kernel@...r.kernel.org
Cc:	sameo@...ux.intel.com
Subject: Re: [PATCH 1/3] mfd: ab8500-debugfs: Apply a check for -ENOMEM after
 allocating memory for sysfs

On Fri, 19 Jul 2013, Lee Jones wrote:

> The AB8500 debugfs driver allocates memory for a new sysfs entry, but
> fails to apply the proper post-allocation checks. If the device were to
> run out of memory, the allocation would return NULL. Without the correct
> checks the driver will continue to populate NULL->[show|store|...],
> which would obviously cause a pointer dereference Oops.
> 
> Signed-off-by: Lee Jones <lee.jones@...aro.org>
> ---
>  drivers/mfd/ab8500-debugfs.c | 3 +++
>  1 file changed, 3 insertions(+)

These 3 patches have been on the MLs for quite some time now.

Tentatively applying all 3.

-- 
Lee Jones
Linaro ST-Ericsson Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
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