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- protect against node not found SEGV

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- fix reversed logic; if we find it in the cache we return it, otherwise
  we create it.
This commit is contained in:
christos 2016-11-23 17:22:44 +00:00
parent b3d297ea4c
commit 07e020dd99
1 changed files with 6 additions and 4 deletions
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10
usr.sbin/puffs/mount_sysctlfs/sysctlfs.c
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@ -1,4 +1,4 @@
/* $NetBSD: sysctlfs.c,v 1.18 2015/11/12 16:51:18 christos Exp $ */
/* $NetBSD: sysctlfs.c,v 1.19 2016/11/23 17:22:44 christos Exp $ */
/*-
* Copyright (c) 2006, 2007 Antti Kantee. All Rights Reserved.
@ -33,7 +33,7 @@
#include <sys/cdefs.h>
#ifndef lint
__RCSID("$NetBSD: sysctlfs.c,v 1.18 2015/11/12 16:51:18 christos Exp $");
__RCSID("$NetBSD: sysctlfs.c,v 1.19 2016/11/23 17:22:44 christos Exp $");
#endif /* !lint */
#include <sys/types.h>
@ -180,8 +180,8 @@ getnode(struct puffs_usermount *pu, struct puffs_pathobj *po, int nodetype)
else
pn = puffs_pn_nodewalk(pu, puffs_path_walkcmp, po);
if (pn == NULL)
return NULL;
if (pn != NULL)
return pn;
/*
* don't know nodetype? query...
*
@ -580,6 +580,8 @@ sysctlfs_node_lookup(struct puffs_usermount *pu, void *opc,
nodetype = CTLTYPE_NODE;
pn_new = getnode(pu, &p2cn->pcn_po_full, nodetype);
if (pn_new == NULL)
return ENOENT;
sfs_new = pn_new->pn_data;
puffs_newinfo_setcookie(pni, pn_new);