diff --git a/drivers/s390/net/ctcm_main.c b/drivers/s390/net/ctcm_main.c
index 70b3a023100e..03b6ad035577 100644
--- a/drivers/s390/net/ctcm_main.c
+++ b/drivers/s390/net/ctcm_main.c
@@ -1837,7 +1837,7 @@ static int __init ctcm_init(void)
 	if (ret)
 		goto out_err;
 	ctcm_root_dev = root_device_register("ctcm");
-	ret = PTR_RET(ctcm_root_dev);
+	ret = PTR_ERR_OR_ZERO(ctcm_root_dev);
 	if (ret)
 		goto register_err;
 	ret = ccw_driver_register(&ctcm_ccw_driver);