From 52856ed732aeab5e8e0b7c9e2a7a3d31736218ab Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Tue, 16 Jun 2009 17:00:40 +0100 Subject: [PATCH] ldisc: Make sure the ldisc isn't active when we close it Signed-off-by: Alan Cox Signed-off-by: Linus Torvalds --- drivers/char/tty_ldisc.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/char/tty_ldisc.c b/drivers/char/tty_ldisc.c index 94b3e06d73e..874c2486c03 100644 --- a/drivers/char/tty_ldisc.c +++ b/drivers/char/tty_ldisc.c @@ -793,6 +793,8 @@ void tty_ldisc_hangup(struct tty_struct *tty) /* Avoid racing set_ldisc */ mutex_lock(&tty->ldisc_mutex); /* Switch back to N_TTY */ + tty_ldisc_halt(tty); + tty_ldisc_wait_idle(tty); tty_ldisc_reinit(tty); /* At this point we have a closed ldisc and we want to reopen it. We could defer this to the next open but -- 2.41.0