Bugzilla bug 95659: added _PR_CleanupStacks(), which is called from

PR_Cleanup().  The patch is contributed by jeff@NerdOne.com.
Modified files: primpl.h, prinit.c, prustack.c

nsprpub/pr/include/private/primpl.h

@@ -1735,6 +1735,7 @@ extern void _PR_InitMW(void);
 extern void _PR_InitRWLocks(void);
 extern void _PR_NotifyCondVar(PRCondVar *cvar, PRThread *me);
 extern void _PR_CleanupThread(PRThread *thread);
+extern void _PR_CleanupStacks(void);
 extern void _PR_CleanupTPD(void);
 extern void _PR_Cleanup(void);
 extern void _PR_LogCleanup(void);

nsprpub/pr/src/misc/prinit.c

@@ -446,6 +446,7 @@ PR_IMPLEMENT(PRStatus) PR_Cleanup()
          * Ideally, for each _PR_InitXXX(), there should be a corresponding
          * _PR_XXXCleanup() that we can call here.
          */
+        _PR_CleanupStacks();
         _PR_CleanupBeforeExit();
         _pr_initialized = PR_FALSE;
         return PR_SUCCESS;

nsprpub/pr/src/threads/combined/prustack.c

@@ -58,6 +58,14 @@ void _PR_InitStacks(void)
     _pr_stackLock = PR_NewLock();
 }
 
+void _PR_CleanupStacks(void)
+{
+    if (_pr_stackLock) {
+        PR_DestroyLock(_pr_stackLock);
+        _pr_stackLock = NULL;
+    }
+}
+
 /*
 ** Allocate a stack for a thread.
 */