From 18f0aa06a3c90b249e8b3a423e67dbfb0c784688 Mon Sep 17 00:00:00 2001
From: Harsh Jain <harsh@chelsio.com>
Date: Tue, 29 Nov 2016 19:00:37 +0530
Subject: [PATCH] crypto: chcr - Fixes Unchecked dereference inside function

Fixes 324429d74127, Unchecked dereference inside function.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jitendra Lulla <JLULLA@chelsio.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 drivers/crypto/chelsio/chcr_algo.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/crypto/chelsio/chcr_algo.c b/drivers/crypto/chelsio/chcr_algo.c
index d24b7ce79142..0ae1b09c58ef 100644
--- a/drivers/crypto/chelsio/chcr_algo.c
+++ b/drivers/crypto/chelsio/chcr_algo.c
@@ -439,8 +439,9 @@ write_sg_to_skb(struct sk_buff *skb, unsigned int *frags,
 	skb->len += count;
 	skb->data_len += count;
 	skb->truesize += count;
+
 	while (count > 0) {
-		if (sg && (!(sg->length)))
+		if (!sg || (!(sg->length)))
 			break;
 		spage = sg_page(sg);
 		get_page(spage);
-- 
2.39.5