linux-kernel - [PATCH] block: replace kmalloc and then memcpy with kmemdup

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Date:	Mon, 11 Mar 2013 13:23:36 +0200
From:	Mihnea Dobrescu-Balaur <mihneadb@...il.com>
To:	xen-devel@...ts.xensource.com
Cc:	konrad.wilk@...cle.com, jeremy@...p.org,
	virtualization@...ts.linux-foundation.org,
	linux-kernel@...r.kernel.org,
	Mihnea Dobrescu-Balaur <mihneadb@...il.com>
Subject: [PATCH] block: replace kmalloc and then memcpy with kmemdup

Signed-off-by: Mihnea Dobrescu-Balaur <mihneadb@...il.com>
---
 drivers/block/xen-blkfront.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index c3dae2e..9620644 100644
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -1203,11 +1203,10 @@ static int blkif_recover(struct blkfront_info *info)
 	int j;
 
 	/* Stage 1: Make a safe copy of the shadow state. */
-	copy = kmalloc(sizeof(info->shadow),
+	copy = kmemdup(info->shadow, sizeof(info->shadow),
 		       GFP_NOIO | __GFP_REPEAT | __GFP_HIGH);
 	if (!copy)
 		return -ENOMEM;
-	memcpy(copy, info->shadow, sizeof(info->shadow));
 
 	/* Stage 2: Set up free list. */
 	memset(&info->shadow, 0, sizeof(info->shadow));
-- 
1.7.10.4

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