serial: tegra-tcu: Use uart_xmit_advance(), fixes icount.tx accounting

[linux-stable] / drivers / tty / serial / tegra-tcu.c

diff --git a/drivers/tty/serial/tegra-tcu.c b/drivers/tty/serial/tegra-tcu.c
index 4877c54c613d1f0d899855350b1e9a81a1a001df..889b701ba7c6258aec81c0ad17acfc5839073272 100644 (file)
--- a/drivers/tty/serial/tegra-tcu.c
+++ b/drivers/tty/serial/tegra-tcu.c
@@ -101,7 +101,7 @@ static void tegra_tcu_uart_start_tx(struct uart_port *port)
                        break;
 
                tegra_tcu_write(tcu, &xmit->buf[xmit->tail], count);
-               xmit->tail = (xmit->tail + count) & (UART_XMIT_SIZE - 1);
+               uart_xmit_advance(port, count);
        }
 
        uart_write_wakeup(port);