linux-kernel - Re: [PATCH] spi: erase pointer to drvdata on removal

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Message-ID: <20130114025145.GC4928@sirena.org.uk>
Date:	Mon, 14 Jan 2013 02:51:45 +0000
From:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
To:	Vivien Didelot <vivien.didelot@...oirfairelinux.com>
Cc:	spi-devel-general@...ts.sourceforge.net,
	Grant Likely <grant.likely@...retlab.ca>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] spi: erase pointer to drvdata on removal

On Thu, Nov 01, 2012 at 02:05:36PM -0400, Vivien Didelot wrote:
> As for i2c-core, let the SPI core handle the removal of the device's
> drvdata, after a remove() or a probe() failure.

Any driver that notices this change is buggy, the driver shouldn't
use a drvdata value that it didn't set.  I had thought this stuff had
all been removed from I2C and either dropped or factored out into the
driver core...
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