freetdm: ftmod_zt - Print which DAHDI event number is failing to be processed

libs/freetdm/src/ftmod/ftmod_zt/ftmod_zt.c

@@ -1176,7 +1176,7 @@ FIO_CHANNEL_NEXT_EVENT_FUNCTION(zt_channel_next_event)
 
 	/* the core already locked the channel for us, so it's safe to call zt_channel_process_event() here */
 	if ((zt_channel_process_event(ftdmchan, &event_id, zt_event_id)) != FTDM_SUCCESS) {
-		ftdm_log_chan_msg(ftdmchan, FTDM_LOG_ERROR, "Failed to process event from channel\n");
+		ftdm_log_chan(ftdmchan, FTDM_LOG_ERROR, "Failed to process DAHDI event %d from channel\n", zt_event_id);
 		return FTDM_FAIL;
 	}
 
@@ -1210,7 +1210,7 @@ FIO_SPAN_NEXT_EVENT_FUNCTION(zt_next_event)
 
 			ftdm_channel_lock(fchan);
 			if ((zt_channel_process_event(fchan, &event_id, zt_event_id)) != FTDM_SUCCESS) {
-				ftdm_log_chan_msg(fchan, FTDM_LOG_ERROR, "Failed to process event from channel\n");
+				ftdm_log_chan(fchan, FTDM_LOG_ERROR, "Failed to process DAHDI event %d from channel\n", zt_event_id);
 				ftdm_channel_unlock(fchan);
 				return FTDM_FAIL;
 			}