MIPS: ath79: 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@m3y3r.de>
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/3483/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

2 files changed, 2 insertions, 6 deletions

diff --git a/arch/mips/ath79/dev-gpio-buttons.c b/arch/mips/ath79/dev-gpio-buttons.c
index 4b0168a11c01..366b35fb164d 100644
--- a/arch/mips/ath79/dev-gpio-buttons.c
+++ b/arch/mips/ath79/dev-gpio-buttons.c
@@ -25,12 +25,10 @@ void __init ath79_register_gpio_keys_polled(int id,
         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 --git a/arch/mips/ath79/dev-leds-gpio.c b/arch/mips/ath79/dev-leds-gpio.c
index cdade68dcd17..dcb1debcefb8 100644
--- a/arch/mips/ath79/dev-leds-gpio.c
+++ b/arch/mips/ath79/dev-leds-gpio.c
@@ -24,12 +24,10 @@ void __init ath79_register_leds_gpio(int id,
         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;