diff --git a/drivers/tty/serial/sunsab.c b/drivers/tty/serial/sunsab.c
index 94db67f21abf..48b39fdb0397 100644
--- a/drivers/tty/serial/sunsab.c
+++ b/drivers/tty/serial/sunsab.c
@@ -1131,7 +1131,13 @@ static int __init sunsab_init(void)
 		}
 	}
 
-	return platform_driver_register(&sab_driver);
+	err = platform_driver_register(&sab_driver);
+	if (err) {
+		kfree(sunsab_ports);
+		sunsab_ports = NULL;
+	}
+
+	return err;
 }
 
 static void __exit sunsab_exit(void)