From f13ab86a6123cc85c072253769fcaac72949ae93 Mon Sep 17 00:00:00 2001
From: "Mark A. Greer" <mgreer@animalcreek.com>
Date: Tue, 12 Nov 2013 13:12:27 -0700
Subject: [PATCH] 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>
---
Reading git-format-patch failed