Commit c87391b5 authored by Ilpo Järvinen's avatar Ilpo Järvinen Committed by Greg Kroah-Hartman
Browse files

serial: dz: Assume previous baudrate is valid 



Assume previously used termios has a valid baudrate and use
it directly.

Reviewed-by: default avatarAndy Shevchenko <andy.shevchenko@gmail.com>
Acked-by: default avatarMaciej W. Rozycki <macro@orcam.me.uk>
Signed-off-by: default avatarIlpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20220816115739.10928-4-ilpo.jarvinen@linux.intel.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 292e2e7a

drivers/tty/serial/dz.c

+6 −3
Original line number Diff line number Diff line
@@ -592,9 +592,12 @@ static void dz_set_termios(struct uart_port *uport, struct ktermios *termios, 


	baud = uart_get_baud_rate(uport, termios, old_termios, 50, 9600);

	bflag = dz_encode_baud_rate(baud);

	if (bflag < 0)	{			/* Try to keep unchanged.  */

		baud = uart_get_baud_rate(uport, old_termios, NULL, 50, 9600);

	if (bflag < 0)	{

		if (old_termios) {

			/* Keep unchanged. */

			baud = tty_termios_baud_rate(old_termios);

			bflag = dz_encode_baud_rate(baud);

		}

		if (bflag < 0)	{		/* Resort to 9600.  */

			baud = 9600;

			bflag = DZ_B9600;