From: Mark A. Greer <mgreer@animalcreek.com>
Date: Tue, 12 Nov 2013 20:12:27 +0000 (-0700)
Subject: crypto: omap-sham - Only release DMA channel if successfully requested
X-Git-Tag: v3.14-rc1~117^2~32
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f13ab86a6123cc85c072253769fcaac72949ae93;p=pandora-kernel.git

crypto: omap-sham - Only release DMA channel if successfully requested

In omap_sham_probe() and omap_sham_remove(), 'dd->dma_lch'
is released without checking to see if it was successfully
requested or not.  This is a bug and was identified and
reported by Dan Carpenter here:

	http://www.spinics.net/lists/devicetree/msg11023.html

Add code to only release 'dd->dma_lch' when its not NULL
(that is, when it was successfully requested).

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
CC: Joel Fernandes <joelf@ti.com>
Signed-off-by: Mark A. Greer <mgreer@animalcreek.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---

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