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mount(2): if vinvalbuf() fails, we must also vput() the mountpoint vnode 

fixes stale vnode lock after attempt to mount something on a NTFS directory
This commit is contained in:
jdolecek 2004-02-22 09:56:26 +00:00
parent d06e4401fa
commit 2ae728e7ef
1 changed files with 5 additions and 3 deletions
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8
sys/kern/vfs_syscalls.c
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@ -1,4 +1,4 @@
/* $NetBSD: vfs_syscalls.c,v 1.202 2003/12/10 11:40:12 hannken Exp $ */
/* $NetBSD: vfs_syscalls.c,v 1.203 2004/02/22 09:56:26 jdolecek Exp $ */
/*
* Copyright (c) 1989, 1993
@ -37,7 +37,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: vfs_syscalls.c,v 1.202 2003/12/10 11:40:12 hannken Exp $");
__KERNEL_RCSID(0, "$NetBSD: vfs_syscalls.c,v 1.203 2004/02/22 09:56:26 jdolecek Exp $");
#include "opt_compat_netbsd.h"
#include "opt_compat_43.h"
@ -249,8 +249,10 @@ sys_mount(l, v, retval)
if (vp->v_mount->mnt_flag & MNT_NOEXEC)
SCARG(uap, flags) |= MNT_NOEXEC;
}
if ((error = vinvalbuf(vp, V_SAVE, p->p_ucred, p, 0, 0)) != 0)
if ((error = vinvalbuf(vp, V_SAVE, p->p_ucred, p, 0, 0)) != 0) {
vput(vp);
return (error);
}
if (vp->v_type != VDIR) {
vput(vp);
return (ENOTDIR);