Unverified Commit 53677a49 authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
Browse files

!13080 serial: core: Fix atomicity violation in uart_tiocmget 

Merge Pull Request from: @ci-robot 
 
PR sync from: Yi Yang <yiyang13@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/YJ6UWQRNBG77UU7IKKQY5BM7CPATR3IB/ 
 
https://gitee.com/openeuler/kernel/issues/IB1MRY 
 
Link:https://gitee.com/openeuler/kernel/pulls/13080

 

Reviewed-by: default avatarYang Yingliang <yangyingliang@huawei.com>
Signed-off-by: default avatarYang Yingliang <yangyingliang@huawei.com>
parents 8f1f6ebc df8fe0cb

drivers/tty/serial/serial_core.c

+1 −1
Original line number Diff line number Diff line
@@ -1094,8 +1094,8 @@ static int uart_tiocmget(struct tty_struct *tty) 
		goto out;



	if (!tty_io_error(tty)) {

		result = uport->mctrl;

		spin_lock_irq(&uport->lock);

		result = uport->mctrl;

		result |= uport->ops->get_mctrl(uport);

		spin_unlock_irq(&uport->lock);

	}