linux-kernel - Re: spi_butterfly null ptr dereference on unload module

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Message-ID: <596240.50099.qm@web180307.mail.gq1.yahoo.com>
Date:	Thu, 4 Nov 2010 13:19:58 -0700 (PDT)
From:	David Brownell <david-b@...bell.net>
To:	lkml <linux-kernel@...r.kernel.org>,
	Randy Dunlap <randy.dunlap@...cle.com>
Cc:	Grant Likely <grant.likely@...retlab.ca>,
	spi-devel-general@...ts.sourceforge.net
Subject: Re: spi_butterfly null ptr dereference on unload module

--- On Thu, 11/4/10, Randy Dunlap <randy.dunlap@...cle.com> wrote:

> Date: Thursday, November 4, 2010, 12:46 PM
> Just load and unload the module.

For the record ... at first impression this
feels like a regression in another part of
the kernel than the driver you indicate.
I used to do that load/unload semi-regularly,
with no errors appearing.

However, I can't do any real testing on this,
now, since I no longer have parport-capable
hardware to which I can hook up one of these adapters ... and thus collect more info about
where the bit-rot has rooted.

- Dave

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