freetdm: ftmod_r2 - set feature FTDM_CHANNEL_FEATURE_IO_STATS just when the…

freetdm: ftmod_r2 - set feature FTDM_CHANNEL_FEATURE_IO_STATS just when the channel is in FTDM_CHANNEL_STATE_UP state

libs/freetdm/src/ftmod/ftmod_r2/ftmod_r2.c

@@ -1403,7 +1403,6 @@ static void *ftdm_r2_run(ftdm_thread_t *me, void *obj)
 		openr2_chan_process_cas_signaling(r2chan);
 
 		ftdmchan = openr2_chan_get_client_data(r2chan);
-		ftdm_channel_set_feature(ftdmchan, FTDM_CHANNEL_FEATURE_IO_STATS);
 	}
 
 	memset(&start, 0, sizeof(start));
@@ -1462,6 +1461,12 @@ static void *ftdm_r2_run(ftdm_thread_t *me, void *obj)
 			ftdmchan = openr2_chan_get_client_data(r2chan);
 			r2call = R2CALL(ftdmchan);
 
+			if (ftdm_test_flag(ftdmchan, FTDM_CHANNEL_STATE_UP)) {
+				ftdm_channel_set_feature(ftdmchan, FTDM_CHANNEL_FEATURE_IO_STATS);
+			} else {
+				ftdm_channel_clear_feature(ftdmchan, FTDM_CHANNEL_FEATURE_IO_STATS);
+			}
+
 			ftdm_mutex_lock(ftdmchan->mutex);
 			ftdm_r2_state_advance_all(ftdmchan);
 			openr2_chan_process_signaling(r2chan);