[src/netbsd-3]: src/sys/fs/union Pull up following revision(s) (requested by ...

[tron <tron%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/6bf11d090634
branches:  netbsd-3
changeset: 577059:6bf11d090634
user:      tron <tron%NetBSD.org@localhost>
date:      Sun Aug 28 09:58:59 2005 +0000

description:
Pull up following revision(s) (requested by nakayama in ticket #708):
        sys/fs/union/union_vfsops.c: revision 1.28
statvfs(2) returns bogus result from union mounted file systems with
`-r' option, since it uses uninitialized buffer in the case of no
lower-layer file system.
So, add M_ZERO to malloc(9) flags to initialize the buffer.

diffstat:

 sys/fs/union/union_vfsops.c |  6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diffs (27 lines):

diff -r 38ef9f0b13b1 -r 6bf11d090634 sys/fs/union/union_vfsops.c
--- a/sys/fs/union/union_vfsops.c       Sun Aug 28 09:57:50 2005 +0000
+++ b/sys/fs/union/union_vfsops.c       Sun Aug 28 09:58:59 2005 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: union_vfsops.c,v 1.25 2005/02/26 22:58:55 perry Exp $  */
+/*     $NetBSD: union_vfsops.c,v 1.25.2.1 2005/08/28 09:58:59 tron Exp $       */
 
 /*
  * Copyright (c) 1994 The Regents of the University of California.
@@ -77,7 +77,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: union_vfsops.c,v 1.25 2005/02/26 22:58:55 perry Exp $");
+__KERNEL_RCSID(0, "$NetBSD: union_vfsops.c,v 1.25.2.1 2005/08/28 09:58:59 tron Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -482,7 +482,7 @@
 {
        int error;
        struct union_mount *um = MOUNTTOUNIONMOUNT(mp);
-       struct statvfs *sbuf = malloc(sizeof(*sbuf), M_TEMP, M_WAITOK);
+       struct statvfs *sbuf = malloc(sizeof(*sbuf), M_TEMP, M_WAITOK | M_ZERO);
        unsigned long lbsize;
 
 #ifdef UNION_DIAGNOSTIC