ppc4xx: Return 0 on success in 4xx ethernet driver

Signed-off-by: NStefan Roese <sr@denx.de>

cpu/ppc4xx/4xx_enet.c

@@ -1036,7 +1036,7 @@ static int ppc_4xx_eth_init (struct eth_device *dev, bd_t * bis)
 	hw_p->bis = bis;
 	hw_p->first_init = 1;
 
-	return (1);
+	return 0;
 }
 
 
@@ -1755,7 +1755,8 @@ int ppc_4xx_eth_initialize (bd_t * bis)
 #endif
 #endif
 	}			/* end for each supported device */
-	return (1);
+
+	return 0;
 }
 
 #if !defined(CONFIG_NET_MULTI)