* pthread_mutex_destroy.c: Set mutex type to an invalid value.

	* pthread_mutex_lock.c: Return EINVAL for invalid mutex type.
	* pthread_mutex_trylock.c: Likewise.
	* pthread_mutex_timedlock.c: Likewise.
	* pthread_mutex_unlock.c: Likewise.

6 files changed, 32 insertions, 13 deletions

diff --git a/nptl/ChangeLog b/nptl/ChangeLog
index 9a171ef204..74cf9a9c57 100644
--- a/nptl/ChangeLog
+++ b/nptl/ChangeLog
@@ -1,3 +1,11 @@
+2005-12-23  Ulrich Drepper  <drepper@redhat.com>
+
+	* pthread_mutex_destroy.c: Set mutex type to an invalid value.
+	* pthread_mutex_lock.c: Return EINVAL for invalid mutex type.
+	* pthread_mutex_trylock.c: Likewise.
+	* pthread_mutex_timedlock.c: Likewise.
+	* pthread_mutex_unlock.c: Likewise.
+
 2005-12-22  Roland McGrath  <roland@redhat.com>
 
 	* sysdeps/pthread/sigaction.c: Use "" instead of <> to include self,
diff --git a/nptl/pthread_mutex_destroy.c b/nptl/pthread_mutex_destroy.c
index 91ccfb0d29..2bf76a9da3 100644
--- a/nptl/pthread_mutex_destroy.c
+++ b/nptl/pthread_mutex_destroy.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2002, 2003 Free Software Foundation, Inc.
+/* Copyright (C) 2002, 2003, 2005 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
 
@@ -28,6 +28,9 @@ __pthread_mutex_destroy (mutex)
   if (mutex->__data.__nusers != 0)
     return EBUSY;
 
+  /* Set to an invalid value.  */
+  mutex->__data.__kind = -1;
+
   return 0;
 }
 strong_alias (__pthread_mutex_destroy, pthread_mutex_destroy)
diff --git a/nptl/pthread_mutex_lock.c b/nptl/pthread_mutex_lock.c
index ee39f20820..a2d0afbe15 100644
--- a/nptl/pthread_mutex_lock.c
+++ b/nptl/pthread_mutex_lock.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
+/* Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
 
@@ -68,8 +68,6 @@ __pthread_mutex_lock (mutex)
 
       /* FALLTHROUGH */
 
-    default:
-      /* Correct code cannot set any other type.  */
     case PTHREAD_MUTEX_TIMED_NP:
     simple:
       /* Normal mutex.  */
@@ -102,6 +100,10 @@ __pthread_mutex_lock (mutex)
 	  mutex->__data.__spins += (cnt - mutex->__data.__spins) / 8;
 	}
       break;
+
+    default:
+      /* Correct code cannot set any other type.  */
+      return EINVAL;
     }
 
   /* Record the ownership.  */
diff --git a/nptl/pthread_mutex_timedlock.c b/nptl/pthread_mutex_timedlock.c
index 1cd2c7e606..06bdf9d1cc 100644
--- a/nptl/pthread_mutex_timedlock.c
+++ b/nptl/pthread_mutex_timedlock.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
+/* Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
 
@@ -70,8 +70,6 @@ pthread_mutex_timedlock (mutex, abstime)
 
       /* FALLTHROUGH */
 
-    default:
-      /* Correct code cannot set any other type.  */
     case PTHREAD_MUTEX_TIMED_NP:
     simple:
       /* Normal mutex.  */
@@ -104,6 +102,10 @@ pthread_mutex_timedlock (mutex, abstime)
 	  mutex->__data.__spins += (cnt - mutex->__data.__spins) / 8;
 	}
       break;
+
+    default:
+      /* Correct code cannot set any other type.  */
+      return EINVAL;
     }
 
   if (result == 0)
diff --git a/nptl/pthread_mutex_trylock.c b/nptl/pthread_mutex_trylock.c
index 7008af3d97..a50b9173ac 100644
--- a/nptl/pthread_mutex_trylock.c
+++ b/nptl/pthread_mutex_trylock.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2002, 2003 Free Software Foundation, Inc.
+/* Copyright (C) 2002, 2003, 2005 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
 
@@ -57,8 +57,6 @@ __pthread_mutex_trylock (mutex)
 
     case PTHREAD_MUTEX_ERRORCHECK_NP:
       /* Error checking mutex.  We do not check for deadlocks.  */
-    default:
-      /* Correct code cannot set any other type.  */
     case PTHREAD_MUTEX_TIMED_NP:
     case PTHREAD_MUTEX_ADAPTIVE_NP:
       /* Normal mutex.  */
@@ -70,6 +68,10 @@ __pthread_mutex_trylock (mutex)
 
 	  return 0;
 	}
+
+    default:
+      /* Correct code cannot set any other type.  */
+      return EINVAL;
     }
 
   return EBUSY;
diff --git a/nptl/pthread_mutex_unlock.c b/nptl/pthread_mutex_unlock.c
index 32bc2a4bc1..5f097a596d 100644
--- a/nptl/pthread_mutex_unlock.c
+++ b/nptl/pthread_mutex_unlock.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2002, 2003 Free Software Foundation, Inc.
+/* Copyright (C) 2002, 2003, 2005 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
 
@@ -47,12 +47,14 @@ __pthread_mutex_unlock_usercnt (mutex, decr)
 	return EPERM;
       break;
 
-    default:
-      /* Correct code cannot set any other type.  */
     case PTHREAD_MUTEX_TIMED_NP:
     case PTHREAD_MUTEX_ADAPTIVE_NP:
       /* Normal mutex.  Nothing special to do.  */
       break;
+
+    default:
+      /* Correct code cannot set any other type.  */
+      return EINVAL;
     }
 
   /* Always reset the owner field.  */