MIPS: Alchemy: 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>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/3058/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 4 insertions, 6 deletions

diff --git a/arch/mips/alchemy/common/platform.c b/arch/mips/alchemy/common/platform.c
index 95cb9113b12..c0f3ce6dcb5 100644
--- a/arch/mips/alchemy/common/platform.c
+++ b/arch/mips/alchemy/common/platform.c
@@ -334,13 +334,12 @@ static void __init alchemy_setup_macs(int ctype)
         if (alchemy_get_macs(ctype) < 1)
                 return;
 
-        macres = kmalloc(sizeof(struct resource) * MAC_RES_COUNT, GFP_KERNEL);
+        macres = kmemdup(au1xxx_eth0_resources[ctype],
+                         sizeof(struct resource) * MAC_RES_COUNT, GFP_KERNEL);
         if (!macres) {
                 printk(KERN_INFO "Alchemy: no memory for MAC0 resources\n");
                 return;
         }
-        memcpy(macres, au1xxx_eth0_resources[ctype],
-               sizeof(struct resource) * MAC_RES_COUNT);
         au1xxx_eth0_device.resource = macres;
 
         i = prom_get_ethernet_addr(ethaddr);
@@ -356,13 +355,12 @@ static void __init alchemy_setup_macs(int ctype)
         if (alchemy_get_macs(ctype) < 2)
                 return;
 
-        macres = kmalloc(sizeof(struct resource) * MAC_RES_COUNT, GFP_KERNEL);
+        macres = kmemdup(au1xxx_eth1_resources[ctype],
+                         sizeof(struct resource) * MAC_RES_COUNT, GFP_KERNEL);
         if (!macres) {
                 printk(KERN_INFO "Alchemy: no memory for MAC1 resources\n");
                 return;
         }
-        memcpy(macres, au1xxx_eth1_resources[ctype],
-               sizeof(struct resource) * MAC_RES_COUNT);
         au1xxx_eth1_device.resource = macres;
 
         ethaddr[5] += 1;        /* next addr for 2nd MAC */