dnet: fixup error handling in initialization

There were two problems here.  We returned success if dnet_mii_init()
failed and there was a release_mem_region() missing.
Signed-off-by: NDan Carpenter <error27@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/dnet.c

@@ -854,7 +854,7 @@ static int __devinit dnet_probe(struct platform_device *pdev)
 	dev = alloc_etherdev(sizeof(*bp));
 	if (!dev) {
 		dev_err(&pdev->dev, "etherdev alloc failed, aborting.\n");
-		goto err_out;
+		goto err_out_release_mem;
 	}
 
 	/* TODO: Actually, we have some interesting features... */
@@ -911,7 +911,8 @@ static int __devinit dnet_probe(struct platform_device *pdev)
 	if (err)
 		dev_warn(&pdev->dev, "Cannot register PHY board fixup.\n");
 
-	if (dnet_mii_init(bp) != 0)
+	err = dnet_mii_init(bp);
+	if (err)
 		goto err_out_unregister_netdev;
 
 	dev_info(&pdev->dev, "Dave DNET at 0x%p (0x%08x) irq %d %pM\n",
@@ -936,6 +937,8 @@ static int __devinit dnet_probe(struct platform_device *pdev)
 	iounmap(bp->regs);
 err_out_free_dev:
 	free_netdev(dev);
+err_out_release_mem:
+	release_mem_region(mem_base, mem_size);
 err_out:
 	return err;
 }