if(events_request->before_chunk_traceset != NULL)
lttv_hooks_destroy(events_request->before_chunk_traceset);
if(events_request->before_chunk_trace != NULL)
if(events_request->before_chunk_traceset != NULL)
lttv_hooks_destroy(events_request->before_chunk_traceset);
if(events_request->before_chunk_trace != NULL)