--- linux-2.6.17/drivers/acpi/scan.c	2006-09-20 13:58:06.000000000 -0700
+++ linux-2.6.18-rc6-mm2-works/drivers/acpi/scan.c	2006-09-20 11:31:33.000000000 -0700
@@ -601,7 +601,7 @@
 		return -ENODEV;
 
 	spin_lock(&acpi_device_lock);
-	list_add_tail(&driver->node, &acpi_bus_drivers);
+	list_add(&driver->node, &acpi_bus_drivers);
 	spin_unlock(&acpi_device_lock);
 	acpi_driver_attach(driver);