[PATCH] MIPS: ath79: Use kmemdup rather than duplicating its implementation

[Thomas Meyer <thomas@m3y3r.de>]

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

Signed-off-by: Thomas Meyer <thomas@m3y3r.de>
---

diff -u -p a/arch/mips/ath79/dev-gpio-buttons.c b/arch/mips/ath79/dev-gpio-buttons.c
--- a/arch/mips/ath79/dev-gpio-buttons.c 2011-11-07 19:37:22.626233914 +0100
+++ b/arch/mips/ath79/dev-gpio-buttons.c 2011-11-08 11:02:34.088856260 +0100
@@ -25,12 +25,10 @@ void __init ath79_register_gpio_keys_pol
 	struct gpio_keys_button *p;
 	int err;
 
-	p = kmalloc(nbuttons * sizeof(*p), GFP_KERNEL);
+	p = kmemdup(buttons, nbuttons * sizeof(*p), GFP_KERNEL);
 	if (!p)
 		return;
 
-	memcpy(p, buttons, nbuttons * sizeof(*p));
-
 	pdev = platform_device_alloc("gpio-keys-polled", id);
 	if (!pdev)
 		goto err_free_buttons;
diff -u -p a/arch/mips/ath79/dev-leds-gpio.c b/arch/mips/ath79/dev-leds-gpio.c
--- a/arch/mips/ath79/dev-leds-gpio.c 2011-11-07 19:37:22.626233914 +0100
+++ b/arch/mips/ath79/dev-leds-gpio.c 2011-11-08 11:02:33.992188296 +0100
@@ -24,12 +24,10 @@ void __init ath79_register_leds_gpio(int
 	struct gpio_led *p;
 	int err;
 
-	p = kmalloc(num_leds * sizeof(*p), GFP_KERNEL);
+	p = kmemdup(leds, num_leds * sizeof(*p), GFP_KERNEL);
 	if (!p)
 		return;
 
-	memcpy(p, leds, num_leds * sizeof(*p));
-
 	pdev = platform_device_alloc("leds-gpio", id);
 	if (!pdev)
 		goto err_free_leds;