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Message-Id: <1388682306-30859-92-git-send-email-kamal@canonical.com>
Date:	Thu,  2 Jan 2014 09:05:06 -0800
From:	Kamal Mostafa <kamal@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	Tom Lendacky <thomas.lendacky@....com>,
	Herbert Xu <herbert@...dor.apana.org.au>,
	Kamal Mostafa <kamal@...onical.com>
Subject: [PATCH 3.8 91/91] crypto: scatterwalk - Use sg_chain_ptr on chain entries

3.8.13.15 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Tom Lendacky <thomas.lendacky@....com>

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@....com>
Signed-off-by: Herbert Xu <herbert@...dor.apana.org.au>
Signed-off-by: Kamal Mostafa <kamal@...onical.com>
---
 include/crypto/scatterwalk.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/crypto/scatterwalk.h b/include/crypto/scatterwalk.h
index 09ef1a0..2cddd2b 100644
--- a/include/crypto/scatterwalk.h
+++ b/include/crypto/scatterwalk.h
@@ -44,7 +44,7 @@ static inline struct scatterlist *scatterwalk_sg_next(struct scatterlist *sg)
 	if (sg_is_last(sg))
 		return NULL;
 
-	return (++sg)->length ? sg : (void *)sg_page(sg);
+	return (++sg)->length ? sg : sg_chain_ptr(sg);
 }
 
 static inline void scatterwalk_crypto_chain(struct scatterlist *head,
-- 
1.8.3.2

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