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serial: 8250: Clear dma tx_err unconditionally

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No need to check non-zeroness first and then clear. Just set to zero
unconditionally.

Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/3b885e7f-1372-3aa9-febd-34566ba25e3d@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Ilpo Järvinen 2022-08-19 14:00:02 +03:00 committed by Greg Kroah-Hartman
parent a3911f6ea5
commit 70d15f216e
1 changed files with 1 additions and 2 deletions
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3
drivers/tty/serial/8250/8250_dma.c
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@ -107,8 +107,7 @@ int serial8250_tx_dma(struct uart_8250_port *p)
dma_async_issue_pending(dma->txchan);
serial8250_clear_THRI(p);
if (dma->tx_err)
dma->tx_err = 0;
dma->tx_err = 0;
return 0;
err: