staging: mei: reordering the exit module cleanup

keeping the exit flow in a reverse order then the init flow.

Signed-off-by: Oren Weil <oren.jer.weil@intel.com>
Acked-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/staging/mei/main.c b/drivers/staging/mei/main.c
index 8341a78..de8825f 100644
--- a/drivers/staging/mei/main.c
+++ b/drivers/staging/mei/main.c
@@ -1326,9 +1326,9 @@
  */
 static void __exit mei_exit_module(void)
 {
-	pci_unregister_driver(&mei_driver);
 	mei_sysfs_device_remove();
 	mei_unregister_cdev();
+	pci_unregister_driver(&mei_driver);
 
 	pr_debug("mei: Driver unloaded successfully.\n");
 }