openwrt-archive/target/linux/brcm47xx/patches-4.1/032-01-MIPS-BCM47xx-Use-kmemdup-rather-than-duplicating-its.patch

From e5dd8f2cf65cb228fad881ecd35093d8409d17c6 Mon Sep 17 00:00:00 2001
From: Andrzej Hajda <a.hajda@samsung.com>
Date: Fri, 7 Aug 2015 09:59:10 +0200
Subject: [PATCH] MIPS: BCM47xx: Use kmemdup rather than duplicating its
 implementation
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The patch was generated using fixed coccinelle semantic patch
scripts/coccinelle/api/memdup.cocci [1].

[1]: http://permalink.gmane.org/gmane.linux.kernel/2014320

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Acked-by: Hauke Mehrtens <hauke@hauke-m.de>
Cc: Hauke Mehrtens <hauke@hauke-m.de>
Cc: Rafał Miłecki <zajec5@gmail.com>
Cc: Andrzej Hajda <a.hajda@samsung.com>
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/10898/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/bcm47xx/buttons.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

--- a/arch/mips/bcm47xx/buttons.c
+++ b/arch/mips/bcm47xx/buttons.c
@@ -396,10 +396,9 @@ static int __init bcm47xx_buttons_copy(c
 {
 	size_t size = nbuttons * sizeof(*buttons);
 
-	bcm47xx_button_pdata.buttons = kmalloc(size, GFP_KERNEL);
+	bcm47xx_button_pdata.buttons = kmemdup(buttons, size, GFP_KERNEL);
 	if (!bcm47xx_button_pdata.buttons)
 		return -ENOMEM;
-	memcpy(bcm47xx_button_pdata.buttons, buttons, size);
 	bcm47xx_button_pdata.nbuttons = nbuttons;
 
 	return 0;