[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[PATCH,HURD] Fix mknod cleanup on error
From: |
Samuel Thibault |
Subject: |
[PATCH,HURD] Fix mknod cleanup on error |
Date: |
Sat, 12 Nov 2011 02:29:27 +0100 |
User-agent: |
Mutt/1.5.21+34 (58baf7c9f32f) (2010-12-30) |
Hello,
mknod() spuriously deallocates its node port on errors such as EROFS.
Samuel
2011-11-11 Samuel Thibault <samuel.thibault@ens-lyon.org>
* sysdeps/mach/hurd/xmknodat.c (__xmknodat): Also store result of `__dir_mkfile'
in new `errnode' variable. Only deallocate `node' if errnode is 0.
diff --git a/sysdeps/mach/hurd/xmknodat.c b/sysdeps/mach/hurd/xmknodat.c
index b222759..98ab4f4 100644
--- a/sysdeps/mach/hurd/xmknodat.c
+++ b/sysdeps/mach/hurd/xmknodat.c
@@ -1,5 +1,5 @@
/* Create a device file relative to an open directory. Hurd version.
- Copyright (C) 1991,1992,1993,1994,1995,1996,1999,2002,2005,2006
+ Copyright (C) 1991,1992,1993,1994,1995,1996,1999,2002,2005,2006,2011
Free Software Foundation, Inc.
This file is part of the GNU C Library.
@@ -35,7 +35,7 @@
int
__xmknodat (int vers, int fd, const char *path, mode_t mode, dev_t *dev)
{
- error_t err;
+ error_t errnode, err;
file_t dir, node;
char *name;
char buf[100], *bp;
@@ -95,7 +95,7 @@ __xmknodat (int vers, int fd, const char *path, mode_t mode,
dev_t *dev)
return -1;
/* Create a new, unlinked node in the target directory. */
- err = __dir_mkfile (dir, O_WRITE, (mode & ~S_IFMT) & ~_hurd_umask, &node);
+ errnode = err = __dir_mkfile (dir, O_WRITE, (mode & ~S_IFMT) & ~_hurd_umask,
&node);
if (! err && translator != NULL)
/* Set the node's translator to make it a device. */
@@ -110,7 +110,8 @@ __xmknodat (int vers, int fd, const char *path, mode_t
mode, dev_t *dev)
err = __dir_link (dir, node, name, 1);
__mach_port_deallocate (__mach_task_self (), dir);
- __mach_port_deallocate (__mach_task_self (), node);
+ if (! errnode)
+ __mach_port_deallocate (__mach_task_self (), node);
if (err)
return __hurd_fail (err);
[Prev in Thread] |
Current Thread |
[Next in Thread] |
- [PATCH,HURD] Fix mknod cleanup on error,
Samuel Thibault <=