diff --git a/drivers/atm/iphase.c b/drivers/atm/iphase.c
index e3f5d073caa6..bc8e8d9f176b 100644
--- a/drivers/atm/iphase.c
+++ b/drivers/atm/iphase.c
@@ -3282,7 +3282,7 @@ static void __exit ia_module_exit(void)
 {
 	pci_unregister_driver(&ia_driver);
 
-        del_timer(&ia_timer);
+	del_timer_sync(&ia_timer);
 }
 
 module_init(ia_module_init);