From b5fd929e34e052bebd8e1a0884f9e58323ac2f1c Mon Sep 17 00:00:00 2001
From: Jan-Simon Pendry <pendry@ucbvax.Berkeley.EDU>
Date: Fri, 11 Feb 1994 02:14:19 -0800
Subject: [PATCH] disallow read from the root directory

SCCS-vsn: sys/miscfs/kernfs/kernfs_vnops.c 8.6
---
 usr/src/sys/miscfs/kernfs/kernfs_vnops.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/usr/src/sys/miscfs/kernfs/kernfs_vnops.c b/usr/src/sys/miscfs/kernfs/kernfs_vnops.c
index 5c7ba7363a..e141be5dde 100644
--- a/usr/src/sys/miscfs/kernfs/kernfs_vnops.c
+++ b/usr/src/sys/miscfs/kernfs/kernfs_vnops.c
@@ -7,7 +7,7 @@
  *
  * %sccs.include.redist.c%
  *
- *	@(#)kernfs_vnops.c	8.5 (Berkeley) %G%
+ *	@(#)kernfs_vnops.c	8.6 (Berkeley) %G%
  */
 
 /*
@@ -421,7 +421,7 @@ kernfs_read(ap)
 	char *cp;
 
 	if (vp->v_flag & VROOT)
-		return (0);
+		return (EOPNOTSUPP);
 
 	kt = VTOKERN(vp)->kf_kt;
 
-- 
2.20.1