Merged revisions 187428 via svnmerge from

Merged revisions 187428 via svnmerge from
https://origsvn.digium.com/svn/asterisk/branches/1.4

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  r187428 | tilghman | 2009-04-09 13:08:20 -0500 (Thu, 09 Apr 2009) | 8 lines

  Race condition between ast_cli_command() and 'module unload' could cause a deadlock.
  Add lock timeouts to avoid this potential deadlock.
  (closes issue #14705)
   Reported by: jamessan
   Patches:
         20090320__bug14705.diff.txt uploaded by tilghman (license 14)
   Tested by: jamessan
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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@187483 65c4cc65-6c06-0410-ace0-fbb531ad65f3