$NetBSD$

--- security/manager/ssl/src/nsSSLThread.cpp.orig	2008-04-12 13:47:24.000000000 +0900
+++ security/manager/ssl/src/nsSSLThread.cpp
@@ -916,7 +916,7 @@ void nsSSLThread::Run(void)
     // remember whether we'll write or read
     nsSSLSocketThreadData::ssl_state busy_socket_ssl_state;
   
-    {
+    if (ssl_thread_singleton) {
       // In this scope we need mutex protection,
       // as we find out what needs to be done.
       
@@ -1078,7 +1078,7 @@ void nsSSLThread::Run(void)
     // avoid setting event repeatedly
     PRBool needToSetPollableEvent = PR_FALSE;
 
-    {
+    if (ssl_thread_singleton) {
       nsAutoLock threadLock(ssl_thread_singleton->mMutex);
       
       mBusySocket->mThreadData->mSSLState = busy_socket_ssl_state;
@@ -1102,7 +1102,7 @@ void nsSSLThread::Run(void)
     }
   }
 
-  {
+  if (ssl_thread_singleton) {
     nsAutoLock threadLock(ssl_thread_singleton->mMutex);
     if (mBusySocket)
     {