From 6c91c0aefd4430b87534794e2c3481e7b476e51b Mon Sep 17 00:00:00 2001
From: Tom Lendacky <thomas.lendacky@amd.com>
Date: Thu, 5 Dec 2013 13:09:53 -0600
Subject: [PATCH] crypto: scatterwalk - Use sg_chain_ptr on chain entries

commit 389a5390583a18e45bc4abd4439291abec5e7a63 upstream.

Now that scatterwalk_sg_chain sets the chain pointer bit the sg_page
call in scatterwalk_sg_next hits a BUG_ON when CONFIG_DEBUG_SG is
enabled. Use sg_chain_ptr instead of sg_page on a chain entry.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
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