Unverified Commit eb29929f authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
Browse files

!12813 serial: protect uart_port_dtr_rts() in uart_shutdown() too 

Merge Pull Request from: @ci-robot 
 
PR sync from: Yi Yang <yiyang13@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/7V36TMUPCKXDAKX75UCKHKJJTK32NOYZ/ 
 
https://gitee.com/src-openeuler/kernel/issues/IAYREU 
 
Link:https://gitee.com/openeuler/kernel/pulls/12813

 

Reviewed-by: default avatarZhang Changzhong <zhangchangzhong@huawei.com>
Signed-off-by: default avatarZhang Changzhong <zhangchangzhong@huawei.com>
parents 195747d8 9c8ada7d

drivers/tty/serial/serial_core.c

+6 −4
Original line number Diff line number Diff line
@@ -287,11 +287,13 @@ static void uart_shutdown(struct tty_struct *tty, struct uart_state *state) 
		/*

		 * Turn off DTR and RTS early.

		 */

		if (uport && uart_console(uport) && tty)

		if (uport) {

			if (uart_console(uport) && tty)

				uport->cons->cflag = tty->termios.c_cflag;



			if (!tty || C_HUPCL(tty))

				uart_port_dtr_rts(uport, 0);

		}



		uart_port_shutdown(port);

	}