linux-kernel - [PATCHv2 0/1] omap: Ptr "isr_reg" tracked as NULL was dereferenced

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Date:	Wed, 13 Oct 2010 14:04:49 +0400
From:	Evgeny Kuznetsov <EXT-Eugeny.Kuznetsov@...ia.com>
To:	tony@...mide.com
Cc:	linux-omap@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, balbi@...com,
	linux@....linux.org.uk, khilman@...prootsystems.com,
	akpm@...ux-foundation.org, charu@...com, tero.kristo@...ia.com,
	ext-eugeny.kuznetsov@...ia.com
Subject: [PATCHv2 0/1] omap: Ptr "isr_reg" tracked as NULL was dereferenced

Hi,

Here is second version of patch which fixes bug in 
/arch/arm/plat-omap/gpio.c file.
Pointer which may have NULL value in some cases (depend on kernel
configuration and GPIO method) is dereferenced later in code.

I removed BUG() macro to do not halt code execution accoding to comments.
And added WARN_ON() macro and exit from function if pointer "isr_reg" is NULL.
Also compilation check is added for correct architecture
configuration.

Thanks,
Evgeny

Evgeny Kuznetsov (1):
  omap: Ptr "isr_reg" tracked as NULL was dereferenced

 arch/arm/plat-omap/gpio.c |   18 ++++++++++++++++++
 1 files changed, 18 insertions(+), 0 deletions(-)

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