Merged revisions 246546 via svnmerge from

Merged revisions 246546 via svnmerge from
https://origsvn.digium.com/svn/asterisk/trunk

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  r246546 | dvossel | 2010-02-12 17:32:33 -0600 (Fri, 12 Feb 2010) | 21 lines

  Merged revisions 246545 via svnmerge from
  https://origsvn.digium.com/svn/asterisk/branches/1.4

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    r246545 | dvossel | 2010-02-12 17:30:17 -0600 (Fri, 12 Feb 2010) | 16 lines

    lock channel during datastore removal

    On channel destruction the channel's datastores are removed and
    destroyed.  Since there are public API calls to find and remove
    datastores on a channel, a lock should be held whenever datastores are
    removed and destroyed.  This resolves a crash caused by a race
    condition in app_chanspy.c.

    (closes issue #16678)
    Reported by: tim_ringenbach
    Patches:
          datastore_destroy_race.diff uploaded by tim ringenbach (license 540)
    Tested by: dvossel
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git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.6.2@246547 65c4cc65-6c06-0410-ace0-fbb531ad65f3