diff --git a/drivers/char/riscom8.c b/drivers/char/riscom8.c
index 8fc4fe4e38f1bdb728f751955aa69d3f9fb06dd8..589ac6f65b9afe21d2e73d15d31be29e0c53b95a 100644
--- a/drivers/char/riscom8.c
+++ b/drivers/char/riscom8.c
@@ -1620,14 +1620,8 @@ static int __init rc_init_drivers(void)
 
 static void rc_release_drivers(void)
 {
-	unsigned long flags;
-
-	spin_lock_irqsave(&riscom_lock, flags);
-
 	tty_unregister_driver(riscom_driver);
 	put_tty_driver(riscom_driver);
-
-	spin_unlock_irqrestore(&riscom_lock, flags);
 }
 
 #ifndef MODULE