diff --git a/drivers/tty/serial/crisv10.c b/drivers/tty/serial/crisv10.c
index 004ee2e9003acf55600b41d7cc330579a4488e52..80b6b1b1f7257d3b1da80f1b58523e7465bdb36b 100644
--- a/drivers/tty/serial/crisv10.c
+++ b/drivers/tty/serial/crisv10.c
@@ -4462,6 +4462,7 @@ static int __init rs_init(void)
 				info->enabled = 0;
 			}
 		}
+		tty_port_init(&info->port);
 		info->uses_dma_in = 0;
 		info->uses_dma_out = 0;
 		info->line = i;