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serial: dz: Use uart_xmit_advance()

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Take advantage of the new uart_xmit_advance() helper.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20221019091151.6692-2-ilpo.jarvinen@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Ilpo Järvinen 2022-10-19 12:11:08 +03:00 committed by Greg Kroah-Hartman
parent 801954d121
commit f4000a06f4
1 changed files with 1 additions and 2 deletions
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3
drivers/tty/serial/dz.c
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@ -279,9 +279,8 @@ static inline void dz_transmit_chars(struct dz_mux *mux)
* so we go one char at a time) :-<
*/
tmp = xmit->buf[xmit->tail];
xmit->tail = (xmit->tail + 1) & (DZ_XMIT_SIZE - 1);
dz_out(dport, DZ_TDR, tmp);
dport->port.icount.tx++;
uart_xmit_advance(&dport->port, 1);
if (uart_circ_chars_pending(xmit) < DZ_WAKEUP_CHARS)
uart_write_wakeup(&dport->port);