[LINUX] PV-on-HVM: The probe, remove and shutdown methods were added

to struct bus_type in 2.6.16. For older kernels use the methods on the
struct device_driver.

Signed-off-by: Ian Campbell <ian.campbell@xensource.com>
Signed-off-by: K. Y. Srinivasan <ksrinivasan@novell.com>
Signed-off-by: Tsunehisa Doi <Doi.Tsunehisa@jp.fujitsu.com>

linux-2.6-xen-sparse/drivers/xen/xenbus/xenbus_probe.c

@@ -171,9 +171,11 @@ static struct xen_bus_type xenbus_frontend = {
 	.bus = {
 		.name     = "xen",
 		.match    = xenbus_match,
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
 		.probe    = xenbus_dev_probe,
 		.remove   = xenbus_dev_remove,
 		.shutdown = xenbus_dev_shutdown,
+#endif
 	},
 	.dev = {
 		.bus_id = "xen",
@@ -334,6 +336,11 @@ int xenbus_register_driver_common(struct xenbus_driver *drv,
 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,10)
 	drv->driver.owner = drv->owner;
 #endif
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,16)
+	drv->driver.probe = xenbus_dev_probe;
+	drv->driver.remove = xenbus_dev_remove;
+	drv->driver.shutdown = xenbus_dev_shutdown;
+#endif
 
 	mutex_lock(&xenwatch_mutex);
 	ret = driver_register(&drv->driver);