Correct devfs_register call.
--- diff/drivers/md/dm-ioctl.c	2002-11-05 14:30:24.000000000 +0000
+++ source/drivers/md/dm-ioctl.c	2002-11-08 10:37:52.000000000 +0000
@@ -180,7 +180,7 @@
 
 	hc->devfs_entry =
 	    devfs_register(_dev_dir, hc->name, DEVFS_FL_CURRENT_OWNER,
-			   minor(dev), major(dev),
+			   major(dev), minor(dev),
 			   S_IFBLK | S_IRUSR | S_IWUSR | S_IRGRP,
 			   &dm_blk_dops, NULL);