Drivers: hv: Make the vmbus driver unloadable

It turns out that the vmbus driver can be made unloadable. Make it
unloadable.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 11 insertions, 0 deletions

diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
index 40956d1c6608..c3875f72b5bf 100644
--- a/drivers/hv/vmbus_drv.c
+++ b/drivers/hv/vmbus_drv.c
@@ -795,8 +795,19 @@ cleanup:
         return ret;
 }
 
+static void __exit vmbus_exit(void)
+{
+
+        free_irq(irq, hv_acpi_dev);
+        vmbus_free_channels();
+        bus_unregister(&hv_bus);
+        hv_cleanup();
+        acpi_bus_unregister_driver(&vmbus_acpi_driver);
+}
+
 
 MODULE_LICENSE("GPL");
 MODULE_VERSION(HV_DRV_VERSION);
 
 subsys_initcall(hv_acpi_init);
+module_exit(vmbus_exit);