Merged revisions 328663 via svnmerge from

Merged revisions 328663 via svnmerge from
https://origsvn.digium.com/svn/asterisk/branches/1.8

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  r328663 | markm | 2011-07-18 16:47:04 -0400 (Mon, 18 Jul 2011) | 9 lines

  app_dial may double free a channel datastore

  When starting a call with originate, and having the callee channel run Bridge() on pickup, we will double free the dialed_interface_info datastore, causing a crash.  Make sure to check if the datastore still exists before trying to free it.

  (closes issue ASTERISK-17917)
  Reported by: Mark Murawski
  Tested by: Mark Murawski
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git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.10@328664 65c4cc65-6c06-0410-ace0-fbb531ad65f3