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authorSamuel Thibault <samuel.thibault@ens-lyon.org>2012-05-10 15:52:43 -0700
committerRoland McGrath <roland@hack.frob.com>2012-05-10 15:57:28 -0700
commit918d4d716343a54ce97aefb13d20fa8f4e1d03de (patch)
treed8578d996c8566e0165ce3f36f4a7e53bd7b6b55
parentf34d6f840eaba45a82fa8d20922fc2d678968fb7 (diff)
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Hurd: Fix port deallocation on mknod error.
-rw-r--r--ChangeLog3
-rw-r--r--sysdeps/mach/hurd/xmknodat.c10
2 files changed, 8 insertions, 5 deletions
diff --git a/ChangeLog b/ChangeLog
index d2174fe270..fa79b77af5 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,8 @@
 2012-05-10  Samuel Thibault  <samuel.thibault@ens-lyon.org>
 
+	* sysdeps/mach/hurd/xmknodat.c (__xmknodat): Deallocate NODE port only
+	if __dir_mkfile succeeded.
+
 	* sysdeps/mach/hurd/dup3.c: Lock _hurd_dtable_lock before
 	checking for _hurd_dtablesize.  Unlock it right after having
 	finished _hurd_dtable allocation.
diff --git a/sysdeps/mach/hurd/xmknodat.c b/sysdeps/mach/hurd/xmknodat.c
index acd1a8c683..645f222809 100644
--- a/sysdeps/mach/hurd/xmknodat.c
+++ b/sysdeps/mach/hurd/xmknodat.c
@@ -1,6 +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
-	Free Software Foundation, Inc.
+   Copyright (C) 1991-2012 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -34,7 +33,7 @@
 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;
@@ -94,7 +93,7 @@ __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.  */
@@ -109,7 +108,8 @@ __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);