diff --git a/drivers/scsi/ch.c b/drivers/scsi/ch.c
index da6e51c..540147c 100644
--- a/drivers/scsi/ch.c
+++ b/drivers/scsi/ch.c
@@ -936,7 +936,7 @@
 	if (init)
 		ch_init_elem(ch);
 
-	class_device_create(ch_sysfs_class,
+	class_device_create(ch_sysfs_class, NULL,
 			    MKDEV(SCSI_CHANGER_MAJOR,ch->minor),
 			    dev, "s%s", ch->name);