diff --git a/drivers/atm/ambassador.c b/drivers/atm/ambassador.c
index 323592de047b5fecc58c13f382b05e2da985c27e..9fffa7af6db1f5c2feaf448fd7dec744e41ab308 100644
--- a/drivers/atm/ambassador.c
+++ b/drivers/atm/ambassador.c
@@ -2452,8 +2452,8 @@ static int __init amb_module_init (void)
 static void __exit amb_module_exit (void)
 {
   PRINTD (DBG_FLOW|DBG_INIT, "cleanup_module");
-  
-  return pci_unregister_driver(&amb_driver);
+
+  pci_unregister_driver(&amb_driver);
 }
 
 module_init(amb_module_init);
diff --git a/drivers/atm/horizon.c b/drivers/atm/horizon.c
index f59349206dd29f9a918cad1531dfc26ce07e91a5..44268cba5a5a215c3f8de6a78af1ada1653cd393 100644
--- a/drivers/atm/horizon.c
+++ b/drivers/atm/horizon.c
@@ -2932,8 +2932,8 @@ static int __init hrz_module_init (void) {
 
 static void __exit hrz_module_exit (void) {
   PRINTD (DBG_FLOW, "cleanup_module");
-  
-  return pci_unregister_driver(&hrz_driver);
+
+  pci_unregister_driver(&hrz_driver);
 }
 
 module_init(hrz_module_init);