dc2114x driver does not have write_hwaddr function.
However, eth stuff executes write_hwaddr function
because eth_device structure has not been initialized.
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
CC: Ben Warren <biggerbadderben@gmail.com>
 
                dev = (struct eth_device*) malloc(sizeof *dev);
 
+               if (!dev) {
+                       printf("Can not allocalte memory of dc21x4x\n");
+                       break;
+               }
+               memset(dev, 0, sizeof(*dev));
+
 #ifdef CONFIG_TULIP_FIX_DAVICOM
                sprintf(dev->name, "Davicom#%d", card_number);
 #else