s-taprop-posix.adb (Initialize_Lock): Destroy mutex attribute before raising the exception so the memory used is freed.

2005-11-14  Jose Ruiz  <ruiz@adacore.com>

	* s-taprop-posix.adb (Initialize_Lock): Destroy mutex attribute before
	raising the exception so the memory used is freed.

From-SVN: r106956

gcc/ada/s-taprop-posix.adb

@@ -312,6 +312,7 @@ package body System.Task_Primitives.Operations is
       pragma Assert (Result = 0 or else Result = ENOMEM);
 
       if Result = ENOMEM then
+         Result := pthread_mutexattr_destroy (Attributes'Access);
          raise Storage_Error;
       end if;