PR/47040 CVS commit: src/sys

["David A. Holland" <dholland%netbsd.org@localhost>]

The following reply was made to PR kern/47040; it has been noted by GNATS.

From: "David A. Holland" <dholland%netbsd.org@localhost>
To: gnats-bugs%gnats.NetBSD.org@localhost
Cc: 
Subject: PR/47040 CVS commit: src/sys
Date: Wed, 10 Oct 2012 06:55:26 +0000

 Module Name:   src
 Committed By:  dholland
 Date:          Wed Oct 10 06:55:26 UTC 2012
 
 Modified Files:
        src/sys/kern: vfs_lookup.c
        src/sys/miscfs/genfs: layer_vnops.c
 
 Log Message:
 In layer_lookup(), clear *vpp before returning EROFS, as otherwise a
 stale value can be returned and this causes a diagnostic panic in
 namei.
 
 In relookup(), clear *vpp before calling VOP_LOOKUP, as is done in
 lookup_once(), as an additional precautionary measure.
 
 (in theory both of these fixes are not required together)
 
 Should fix PR 47040.
 
 
 To generate a diff of this commit:
 cvs rdiff -u -r1.194 -r1.195 src/sys/kern/vfs_lookup.c
 cvs rdiff -u -r1.50 -r1.51 src/sys/miscfs/genfs/layer_vnops.c
 
 Please note that diffs are not public domain; they are subject to the
 copyright notices on the relevant files.