Merged revisions 174148 via svnmerge from

https://origsvn.digium.com/svn/asterisk/branches/1.4

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r174148 | russell | 2009-02-07 10:15:07 -0600 (Sat, 07 Feb 2009) | 2 lines

Fix a race condition that could cause a crash.

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@174149 65c4cc65-6c06-0410-ace0-fbb531ad65f3