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Check for the inode having been previously freed, in UNMARK_VNODE().

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Avoids a panic when calling mkdir() on a full filesystem.
This commit is contained in:
perseant 2005-04-18 17:36:46 +00:00
parent 240805e513
commit b2d19f57a3
1 changed files with 3 additions and 3 deletions
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6
sys/ufs/lfs/lfs_vnops.c
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@ -1,4 +1,4 @@
/* $NetBSD: lfs_vnops.c,v 1.145 2005/04/16 17:35:58 perseant Exp $ */
/* $NetBSD: lfs_vnops.c,v 1.146 2005/04/18 17:36:46 perseant Exp $ */
/*-
* Copyright (c) 1999, 2000, 2001, 2002, 2003 The NetBSD Foundation, Inc.
@ -67,7 +67,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: lfs_vnops.c,v 1.145 2005/04/16 17:35:58 perseant Exp $");
__KERNEL_RCSID(0, "$NetBSD: lfs_vnops.c,v 1.146 2005/04/18 17:36:46 perseant Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@ -549,7 +549,7 @@ lfs_unmark_vnode(struct vnode *vp)
{
struct inode *ip = VTOI(vp);
if (ip->i_flag & IN_ADIROP) {
if (ip && (ip->i_flag & IN_ADIROP)) {
KASSERT(vp->v_flag & VDIROP);
simple_lock(&ip->i_lfs->lfs_interlock);
--ip->i_lfs->lfs_nadirop;