linux-kernel - [PATCH] ARM: SAMSUNG: Use kmemdup rather than duplicating its implementation

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Date:	Thu, 17 Nov 2011 23:43:40 +0100
From:	Thomas Meyer <thomas@...3r.de>
To:	ben-linux@...ff.org, kgene.kim@...sung.com, linux@....linux.org.uk,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH] ARM: SAMSUNG: Use kmemdup rather than duplicating its
 implementation

The semantic patch that makes this change is available
in scripts/coccinelle/api/memdup.cocci.

Signed-off-by: Thomas Meyer <thomas@...3r.de>
---

diff -u -p a/arch/arm/plat-s3c24xx/dma.c b/arch/arm/plat-s3c24xx/dma.c
--- a/arch/arm/plat-s3c24xx/dma.c 2011-11-07 19:37:20.736205210 +0100
+++ b/arch/arm/plat-s3c24xx/dma.c 2011-11-08 11:03:41.719762852 +0100
@@ -1437,11 +1437,10 @@ int __init s3c24xx_dma_init_map(struct s
 	size_t map_sz = sizeof(*nmap) * sel->map_size;
 	int ptr;
 
-	nmap = kmalloc(map_sz, GFP_KERNEL);
+	nmap = kmemdup(sel->map, map_sz, GFP_KERNEL);
 	if (nmap == NULL)
 		return -ENOMEM;
 
-	memcpy(nmap, sel->map, map_sz);
 	memcpy(&dma_sel, sel, sizeof(*sel));
 
 	dma_sel.map = nmap;
--
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