From 400aa020ea599b4319670a1cea7028930aeab588 Mon Sep 17 00:00:00 2001
From: Ulrich Drepper <drepper@gmail.com>
Date: Mon, 16 Jan 2012 09:03:20 -0500
Subject: [PATCH] Fix locking problem in fmtmsg

---
 ChangeLog            |  8 ++++++++
 stdlib/Makefile      |  5 +++--
 stdlib/bug-fmtmsg1.c | 28 ++++++++++++++++++++++++++++
 stdlib/fmtmsg.c      |  5 ++++-
 4 files changed, 43 insertions(+), 3 deletions(-)
 create mode 100644 stdlib/bug-fmtmsg1.c

diff --git a/ChangeLog b/ChangeLog
index 00faba1ffa..3f06b9a800 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,11 @@
+2012-01-16  Ulrich Drepper  <drepper@gmail.com>
+
+	* stdlib/Makefile (tests): Add bug-fmtmsg1.
+	* stdlib/bug-fmtmsg1.c: New file.
+
+	* stdlib/fmtmsg.c (init): Add missing unlock.
+	Patch by Peng Haitao <penght@cn.fujitsu.com>.
+
 2012-01-12  Marek Polacek  <polacek@redhat.com>
 
 	* libio/bits/stdio2.h: Do not define gets for ISO C11, ISO C++11,
diff --git a/stdlib/Makefile b/stdlib/Makefile
index 04c6ac5cae..f9bba3a55d 100644
--- a/stdlib/Makefile
+++ b/stdlib/Makefile
@@ -1,4 +1,4 @@
-# Copyright (C) 1991-2009, 2011 Free Software Foundation, Inc.
+# Copyright (C) 1991-2009, 2011, 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
@@ -71,7 +71,7 @@ tests		:= tst-strtol tst-strtod testmb testrand testsort testdiv   \
 		   tst-atof1 tst-atof2 tst-strtod2 tst-strtod3 tst-rand48-2 \
 		   tst-makecontext tst-strtod4 tst-strtod5 tst-qsort2	    \
 		   tst-makecontext2 tst-strtod6 tst-unsetenv1		    \
-		   tst-makecontext3 bug-getcontext
+		   tst-makecontext3 bug-getcontext bug-fmtmsg1
 
 include ../Makeconfig
 
@@ -121,6 +121,7 @@ tst-strtod3-ENV = LOCPATH=$(common-objpfx)localedata
 tst-strtod4-ENV = LOCPATH=$(common-objpfx)localedata
 tst-strtod5-ENV = LOCPATH=$(common-objpfx)localedata
 testmb2-ENV = LOCPATH=$(common-objpfx)localedata
+bug-fmtmsg1-ENV = SEV_LEVEL=foo,11,newsev
 
 # Run a test on the header files we use.
 tests: $(objpfx)isomac.out
diff --git a/stdlib/bug-fmtmsg1.c b/stdlib/bug-fmtmsg1.c
new file mode 100644
index 0000000000..04bfaea3ce
--- /dev/null
+++ b/stdlib/bug-fmtmsg1.c
@@ -0,0 +1,28 @@
+#include <fmtmsg.h>
+#include <stdio.h>
+
+
+static int
+do_test (void)
+{
+  /* Ugly, but fmtmsg would otherwise print to stderr which we do not
+     want.  */
+  fclose (stderr);
+  stderr = stdout;
+
+  int e1;
+  e1 = fmtmsg (MM_PRINT, "label:part", MM_WARNING, "text", "action", "tag");
+
+  int e2;
+  e2 = fmtmsg (MM_PRINT, "label2:part2", 11, "text2", "action2", "tag2");
+
+  addseverity (10, "additional severity");
+
+  int e3;
+  e3 = fmtmsg (MM_PRINT, "label3:part3", 10, "text3", "action3", "tag3");
+
+  return e1 != 0 || e2 != 0 || e3 != 0;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"
diff --git a/stdlib/fmtmsg.c b/stdlib/fmtmsg.c
index 8ee06bfd06..d187bb21b0 100644
--- a/stdlib/fmtmsg.c
+++ b/stdlib/fmtmsg.c
@@ -1,4 +1,5 @@
-/* Copyright (C) 1997,1999-2003,2005,2006,2011 Free Software Foundation, Inc.
+/* Copyright (C) 1997,1999-2003,2005,2006,2011,2012
+   Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
@@ -280,6 +281,8 @@ init (void)
 
 	  sevlevel_var = end + (*end == ':' ? 1 : 0);
 	}
+
+      __libc_lock_unlock (lock);
     }
 }