struct hv_dev_port_info outbound;
};
+static int vmbus_exists(void)
+{
+ if (hv_acpi_dev == NULL)
+ return -ENODEV;
+
+ return 0;
+}
+
static void get_channel_info(struct hv_device *device,
struct hv_device_info *info)
* will not deliver any more messages since there is
* no empty slot
*/
- smp_mb();
+ mb();
if (msg->header.message_flags.msg_pending) {
/*
pr_info("registering driver %s\n", hv_driver->name);
+ ret = vmbus_exists();
+ if (ret < 0)
+ return ret;
+
hv_driver->driver.name = hv_driver->name;
hv_driver->driver.owner = owner;
hv_driver->driver.mod_name = mod_name;
{
pr_info("unregistering driver %s\n", hv_driver->name);
- driver_unregister(&hv_driver->driver);
-
+ if (!vmbus_exists())
+ driver_unregister(&hv_driver->driver);
}
EXPORT_SYMBOL_GPL(vmbus_driver_unregister);
if (ret)
pr_err("Unable to register child device\n");
else
- pr_info("child device %s registered\n",
+ pr_debug("child device %s registered\n",
dev_name(&child_device_obj->device));
return ret;
*/
void vmbus_device_unregister(struct hv_device *device_obj)
{
+ pr_debug("child device %s unregistered\n",
+ dev_name(&device_obj->device));
+
/*
* Kick off the process of unregistering the device.
* This will call vmbus_remove() and eventually vmbus_device_release()
*/
device_unregister(&device_obj->device);
-
- pr_info("child device %s unregistered\n",
- dev_name(&device_obj->device));
}
cleanup:
acpi_bus_unregister_driver(&vmbus_acpi_driver);
+ hv_acpi_dev = NULL;
return ret;
}