Merged revisions 230038 via svnmerge from

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

........
  r230038 | file | 2009-11-13 13:44:07 -0600 (Fri, 13 Nov 2009) | 9 lines
  
  Fix a crash caused by two threads thinking they should both free the
  chan_local private structure when only one should.
  
  (closes issue #15314)
  Reported by: sroberts
  Patches:
        Issue15314_Move_Nulling_owner.patch uploaded by davidw (license 780)
  Tested by: davidw, lottc
........


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@230039 65c4cc65-6c06-0410-ace0-fbb531ad65f3

channels/chan_local.c

@@ -692,11 +692,11 @@ static int local_hangup(struct ast_channel *ast)
 		ast_clear_flag(p, LOCAL_LAUNCHED_PBX);
 		ast_module_user_remove(p->u_chan);
 	} else {
-		p->owner = NULL;
 		ast_module_user_remove(p->u_owner);
 		while (p->chan && ast_channel_trylock(p->chan)) {
 			DEADLOCK_AVOIDANCE(&p->lock);
 		}
+		p->owner = NULL;
 		if (p->chan) {
 			ast_queue_hangup(p->chan);
 			ast_channel_unlock(p->chan);