diff --git a/drivers/net/tokenring/tmspci.c b/drivers/net/tokenring/tmspci.c
index 7d3e270c4f45..3b2f00b9b7bd 100644
--- a/drivers/net/tokenring/tmspci.c
+++ b/drivers/net/tokenring/tmspci.c
@@ -224,8 +224,7 @@ static void __devexit tms_pci_detach (struct pci_dev *pdev)
 {
 	struct net_device *dev = pci_get_drvdata(pdev);
 
-	if (!dev)
-		BUG();
+	BUG_ON(!dev);
 	unregister_netdev(dev);
 	release_region(dev->base_addr, TMS_PCI_IO_EXTENT);
 	free_irq(dev->irq, dev);