diff --git a/drivers/message/i2o/driver.c b/drivers/message/i2o/driver.c
index d3235f2..d330e4e 100644
--- a/drivers/message/i2o/driver.c
+++ b/drivers/message/i2o/driver.c
@@ -123,8 +123,12 @@
 	}
 
 	rc = driver_register(&drv->driver);
-	if (rc)
-		destroy_workqueue(drv->event_queue);
+	if (rc) {
+		if (drv->event) {
+			destroy_workqueue(drv->event_queue);
+			drv->event_queue = NULL;
+		}
+	}
 
 	return rc;
 };