From: Jeff Harris <jeff_harris@kentrox.com>
Date: Fri, 23 Sep 2011 15:49:36 +0000 (-0400)
Subject: spi: Fix WARN when removing spi-fsl-spi module
X-Git-Tag: v3.1-rc8~11^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=387719c2ec995019e0af0dc537ca17c9ebd5b64f;p=pandora-kernel.git

spi: Fix WARN when removing spi-fsl-spi module

If CPM mode is not used, the fsl_dummy_rx variable is never allocated.  When
the cleanup attempts to free it, the reference count is zero and a WARN is
generated.  The same CPM mode check used in the initialize is applied to the
free as well.

Tested on 2.6.33 with the previous spi_mpc8xxx driver.  The renamed
spi-fsl-spi driver looks to have the same problem.

Signed-off-by: Jeff Harris <jeff_harris@kentrox.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
---

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