netdev - [PATCH] Olympic (IBM PCI tokenring): handle return codes of register

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Date:	Fri, 20 Apr 2007 08:52:32 +0200
From:	Borislav Petkov <bbpetkov@...oo.de>
To:	linux-tr@...uxtr.net, netdev@...r.kernel.org
Cc:	kernel-janitors@...ts.osdl.org
Subject: [PATCH] Olympic (IBM PCI tokenring): handle return codes of register_netdev

Handle return codes of register_netdev().

Signed-off-by: Borislav Petkov <bbpetkov@...oo.de>


Index: 21-rc7/drivers/net/tokenring/olympic.c
===================================================================
--- 21-rc7.orig/drivers/net/tokenring/olympic.c
+++ 21-rc7/drivers/net/tokenring/olympic.c
@@ -264,7 +264,10 @@ static int __devinit olympic_probe(struc
 	SET_NETDEV_DEV(dev, &pdev->dev);
 
 	pci_set_drvdata(pdev,dev) ; 
-	register_netdev(dev) ; 
+
+	if (register_netdev(dev))
+		goto op_free_iomap;
+
 	printk("Olympic: %s registered as: %s\n",olympic_priv->olympic_card_name,dev->name);
 	if (olympic_priv->olympic_network_monitor) { /* Must go after register_netdev as we need the device name */ 
 		char proc_name[20] ; 
@@ -281,7 +284,8 @@ op_free_iomap:
 	if (olympic_priv->olympic_lap)
 		iounmap(olympic_priv->olympic_lap);
 
-	free_netdev(dev);
+	if (dev)
+		free_netdev(dev);
 op_release_dev:
 	pci_release_regions(pdev); 
 
-
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