diff --git a/drivers/char/xillybus/xillyusb.c b/drivers/char/xillybus/xillyusb.c
index 33ca0f4af3901..e12d359194f89 100644
--- a/drivers/char/xillybus/xillyusb.c
+++ b/drivers/char/xillybus/xillyusb.c
@@ -2093,9 +2093,11 @@ static int xillyusb_discovery(struct usb_interface *interface)
 	 * just after responding with the IDT, there is no reason for any
 	 * work item to be running now. To be sure that xdev->channels
 	 * is updated on anything that might run in parallel, flush the
-	 * workqueue, which rarely does anything.
+	 * device's workqueue and the wakeup work item. This rarely
+	 * does anything.
 	 */
 	flush_workqueue(xdev->workq);
+	flush_work(&xdev->wakeup_workitem);
 
 	xdev->num_channels = num_channels;
 
@@ -2274,9 +2276,9 @@ static int __init xillyusb_init(void)
 
 static void __exit xillyusb_exit(void)
 {
-	destroy_workqueue(wakeup_wq);
-
 	usb_deregister(&xillyusb_driver);
+
+	destroy_workqueue(wakeup_wq);
 }
 
 module_init(xillyusb_init);