diff --git a/drivers/staging/fwserial/fwserial.c b/drivers/staging/fwserial/fwserial.c
index c368082aae1a..c963848522b1 100644
--- a/drivers/staging/fwserial/fwserial.c
+++ b/drivers/staging/fwserial/fwserial.c
@@ -1223,7 +1223,7 @@ static int get_serial_info(struct tty_struct *tty,
 	ss->flags = port->port.flags;
 	ss->xmit_fifo_size = FWTTY_PORT_TXFIFO_LEN;
 	ss->baud_base = 400000000;
-	ss->close_delay = port->port.close_delay;
+	ss->close_delay = jiffies_to_msecs(port->port.close_delay) / 10;
 	mutex_unlock(&port->port.mutex);
 	return 0;
 }
@@ -1245,7 +1245,7 @@ static int set_serial_info(struct tty_struct *tty,
 			return -EPERM;
 		}
 	}
-	port->port.close_delay = ss->close_delay * HZ / 100;
+	port->port.close_delay = msecs_to_jiffies(ss->close_delay * 10);
 	mutex_unlock(&port->port.mutex);
 
 	return 0;