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

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

[Thomas Meyer]

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/alchemy/common/platform.c b/arch/mips/alchemy/common/platform.c
--- a/arch/mips/alchemy/common/platform.c 2011-11-07 19:37:22.596233458 +0100
+++ b/arch/mips/alchemy/common/platform.c 2011-11-08 11:02:32.915507198 +0100
@@ -307,13 +307,12 @@ static void __init alchemy_setup_macs(in
 	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);
@@ -329,13 +328,12 @@ static void __init alchemy_setup_macs(in
 	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 */