--- src/sys/vfs/udf/udf_vfsops.c	2006/12/23 00:41:30	1.25
+++ src/sys/vfs/udf/udf_vfsops.c	2007/05/09 00:53:36	1.26
@@ -244,7 +244,7 @@ udf_mountfs(struct vnode *devvp, struct
 	 */
 	if ((error = vfs_mountedon(devvp)))
 		return(error);
-	if (count_udev(devvp->v_udev) > 0)
+	if (count_udev(devvp->v_umajor, devvp->v_uminor) > 0)
 		return(EBUSY);
 	if ((error = vinvalbuf(devvp, V_SAVE, 0, 0)))
 		return(error);