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-rw-r--r--nptl/pthread_mutex_destroy.c12
1 files changed, 10 insertions, 2 deletions
diff --git a/nptl/pthread_mutex_destroy.c b/nptl/pthread_mutex_destroy.c
index 2bf76a9da3..19a647a846 100644
--- a/nptl/pthread_mutex_destroy.c
+++ b/nptl/pthread_mutex_destroy.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2002, 2003, 2005 Free Software Foundation, Inc.
+/* Copyright (C) 2002, 2003, 2005, 2006 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
 
@@ -26,9 +26,17 @@ __pthread_mutex_destroy (mutex)
      pthread_mutex_t *mutex;
 {
   if (mutex->__data.__nusers != 0)
-    return EBUSY;
+    {
+      if ((mutex->__data.__kind & PTHREAD_MUTEX_ROBUST_PRIVATE_NP) != 0
+	  && (mutex->__data.__lock & FUTEX_OWNER_DIED) != 0
+	  && mutex->__data.__nusers == 1)
+	goto dead_robust_mutex;
+
+      return EBUSY;
+    }
 
   /* Set to an invalid value.  */
+ dead_robust_mutex:
   mutex->__data.__kind = -1;
 
   return 0;