it821x: add ->remove method and module_exit()

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

drivers/ide/pci/it821x.c

@@ -665,6 +665,15 @@ static int __devinit it821x_init_one(struct pci_dev *dev, const struct pci_devic
 	return rc;
 }
 
+static void __devexit it821x_remove(struct pci_dev *dev)
+{
+	struct ide_host *host = pci_get_drvdata(dev);
+	struct it821x_dev *itdevs = host->host_priv;
+
+	ide_pci_remove(dev);
+	kfree(itdevs);
+}
+
 static const struct pci_device_id it821x_pci_tbl[] = {
 	{ PCI_VDEVICE(ITE, PCI_DEVICE_ID_ITE_8211), 0 },
 	{ PCI_VDEVICE(ITE, PCI_DEVICE_ID_ITE_8212), 0 },
@@ -677,14 +686,21 @@ static struct pci_driver driver = {
 	.name		= "ITE821x IDE",
 	.id_table	= it821x_pci_tbl,
 	.probe		= it821x_init_one,
+	.remove		= it821x_remove,
 };
 
 static int __init it821x_ide_init(void)
 {
 	return ide_pci_register_driver(&driver);
 }
 
+static void __exit it821x_ide_exit(void)
+{
+	pci_unregister_driver(&driver);
+}
+
 module_init(it821x_ide_init);
+module_exit(it821x_ide_exit);
 
 module_param_named(noraid, it8212_noraid, int, S_IRUGO);
 MODULE_PARM_DESC(noraid, "Force card into bypass mode");