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-rw-r--r--linuxthreads/ChangeLog6
-rw-r--r--linuxthreads/mutex.c16
2 files changed, 20 insertions, 2 deletions
diff --git a/linuxthreads/ChangeLog b/linuxthreads/ChangeLog
index 4dce416150..dc0a248a6f 100644
--- a/linuxthreads/ChangeLog
+++ b/linuxthreads/ChangeLog
@@ -1,3 +1,9 @@
+2000-10-05  Jakub Jelinek  <jakub@redhat.com>
+
+	* mutex.c (__pthread_mutex_destroy): Correct test of
+	busy mutex for mutexes using alternate fastlocks.
+	Patch by dtc@cmucl.cons.org.
+
 2000-09-28  Martin Schwidefsksy    <schwidefsky@de.ibm.com>
 
 	* sysdeps/s390/pt-machine.h: Make %a0 the thread register.
diff --git a/linuxthreads/mutex.c b/linuxthreads/mutex.c
index 9b4a3c7f56..5955c575d9 100644
--- a/linuxthreads/mutex.c
+++ b/linuxthreads/mutex.c
@@ -38,8 +38,20 @@ strong_alias (__pthread_mutex_init, pthread_mutex_init)
 
 int __pthread_mutex_destroy(pthread_mutex_t * mutex)
 {
-  if ((mutex->__m_lock.__status & 1) != 0) return EBUSY;
-  return 0;
+  switch (mutex->__m_kind) {
+  case PTHREAD_MUTEX_ADAPTIVE_NP:
+  case PTHREAD_MUTEX_RECURSIVE_NP:
+    if ((mutex->__m_lock.__status & 1) != 0)
+      return EBUSY;
+    return 0;
+  case PTHREAD_MUTEX_ERRORCHECK_NP:
+  case PTHREAD_MUTEX_TIMED_NP:
+    if (mutex->__m_lock.__status != 0)
+      return EBUSY;
+    return 0;
+  default:
+    return EINVAL;
+  }
 }
 strong_alias (__pthread_mutex_destroy, pthread_mutex_destroy)