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-rw-r--r--nptl/pthread_mutex_lock.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/nptl/pthread_mutex_lock.c b/nptl/pthread_mutex_lock.c
index 52cc47f4cc..1c3ee4fe25 100644
--- a/nptl/pthread_mutex_lock.c
+++ b/nptl/pthread_mutex_lock.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
+/* Copyright (C) 2002,2003,2004,2005,2006,2007 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
@@ -127,6 +127,8 @@ __pthread_mutex_lock (mutex)
int newval = id;
#ifdef NO_INCR
newval |= FUTEX_WAITERS;
+#else
+ newval |= (oldval & FUTEX_WAITERS);
#endif
newval