From: H Hartley Sweeten <hartleys@visionengravers.com>
Date: Wed, 7 Oct 2009 21:08:08 +0000 (-0400)
Subject: mtd: fix memory leak in mtd_dataflash
X-Git-Tag: v2.6.33-rc1~66^2~60
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d4702669b0b64b8fa7c91123639ec20d9592ee43;p=pandora-kernel.git

mtd: fix memory leak in mtd_dataflash

Fix a potential memory leak in mtd_dataflash driver.

The private data that is allocated when registering a DataFlash
device with the MTD subsystem is not released if an error occurs
when add_mtd_partitions() or add_mtd_device() is called.  Fix this
by adding an error path.  The memory is already released during a
remove.

Also, add a dev_set_drvdata(&spi->dev, NULL) before the kfree() so
that the spi device does not reference invalid data.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
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