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serial: 8250: Remove superfluous sanity check

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The serial core already checks the RS485 RTS settings for sanity, so remove
the superfluous check in serial8250_em485_config().

Signed-off-by: Lino Sanfilippo <l.sanfilippo@kunbus.com>
Link: https://lore.kernel.org/r/20240407002709.16224-4-l.sanfilippo@kunbus.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Lino Sanfilippo
2024-04-07 02:27:08 +02:00
committed by Greg Kroah-Hartman
parent 255abd49f1
commit 384fa8647d
1 changed files with 0 additions and 7 deletions
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7
drivers/tty/serial/8250/8250_port.c
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@@ -612,13 +612,6 @@ int serial8250_em485_config(struct uart_port *port, struct ktermios *termios,
{
struct uart_8250_port *up = up_to_u8250p(port);
/* pick sane settings if the user hasn't */
if (!!(rs485->flags & SER_RS485_RTS_ON_SEND) ==
!!(rs485->flags & SER_RS485_RTS_AFTER_SEND)) {
rs485->flags |= SER_RS485_RTS_ON_SEND;
rs485->flags &= ~SER_RS485_RTS_AFTER_SEND;
}
/*
* Both serial8250_em485_init() and serial8250_em485_destroy()
* are idempotent.