linux-kernel - Re: [PATCH] omap2_mcspi.c: NULL pointer dereference

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Date:	Thu, 25 Feb 2010 13:14:27 +0200
From:	Felipe Contreras <felipe.contreras@...il.com>
To:	Scott Ellis <scott@...pnowtek.com>
Cc:	linux-kernel@...r.kernel.org,
	David Brownell <dbrownell@...rs.sourceforge.net>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Tony Lindgren <tony@...mide.com>,
	Kevin Hilman <khilman@...prootsystems.com>,
	Aaro Koskinen <Aaro.Koskinen@...ia.com>,
	spi-devel-general@...ts.sourceforge.net,
	gumstix-users@...ts.sourceforge.net
Subject: Re: [PATCH] omap2_mcspi.c: NULL pointer dereference

On Tue, Feb 23, 2010 at 9:36 PM, Scott Ellis <scott@...pnowtek.com> wrote:
> Check spi->controller_state before dereferencing.
>
> Shows up NULL here when using spi_alloc_device()/spi_add_device()
> and spi_add_device() fails before spi_setup(). Calling spi_dev_put()
> on the leftover spi_device results in the error.

This should go to the linux-omap mailing list.

-- 
Felipe Contreras
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