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| author | Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> | 2022-09-01 17:39:34 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-09-28 12:04:08 +0300 |
| commit | 9eb710d1843aeef8166a5a23bd7e374c584375ae (patch) | |
| tree | 3943f12146cb9dc9fe46b35e478d8422777141f9 | |
| parent | 6cc0434f9d44eae6e6b4d334a7837f9e883de97e (diff) | |
| download | linux-9eb710d1843aeef8166a5a23bd7e374c584375ae.tar.xz | |
serial: tegra-tcu: Use uart_xmit_advance(), fixes icount.tx accounting
commit 1d10cd4da593bc0196a239dcc54dac24b6b0a74e upstream.
Tx'ing does not correctly account Tx'ed characters into icount.tx.
Using uart_xmit_advance() fixes the problem.
Fixes: 2d908b38d409 ("serial: Add Tegra Combined UART driver")
Cc: <stable@vger.kernel.org> # serial: Create uart_xmit_advance()
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20220901143934.8850-4-ilpo.jarvinen@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/tty/serial/tegra-tcu.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/tty/serial/tegra-tcu.c b/drivers/tty/serial/tegra-tcu.c index aaf8748a6147..31ae705aa38b 100644 --- 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); |