ret = lttng_disable_event(handle, event_name, channel_name);
if (ret < 0) {
ERR("Event %s: %s (channel %s, session %s)", event_name,
ret = lttng_disable_event(handle, event_name, channel_name);
if (ret < 0) {
ERR("Event %s: %s (channel %s, session %s)", event_name,