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fixed segfault which happens during hold/transfer action
git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.2@44460 65c4cc65-6c06-0410-ace0-fbb531ad65f3
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@@ -2826,7 +2826,7 @@ static struct chan_list *find_chan_by_pid(struct chan_list *list, int pid)
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{
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struct chan_list *help=list;
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for (;help; help=help->next) {
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if (help->bc->pid == pid) return help;
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if ( help->bc && (help->bc->pid == pid) ) return help;
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}
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chan_misdn_log(6, 0, "$$$ find_chan: No channel found for pid:%d\n",pid);
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