From 300420722e0734a4254f3b634e0f82664495d210 Mon Sep 17 00:00:00 2001 From: Jiri Slaby Date: Wed, 16 Nov 2011 16:27:08 +0100 Subject: [PATCH] TTY: ldisc, move wait idle to caller It is the only place where reinit is called from. And we really need to wait for the old ldisc to go once. Actually this is the place where the waiting originally was (before removed and re-added later). This will make the fix in the following patch easier to implement. Signed-off-by: Jiri Slaby Cc: Dave Young Cc: Dave Jones Cc: Ben Hutchings Cc: Dmitriy Matrosov Cc: Alan Cox Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/tty/tty_ldisc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/tty/tty_ldisc.c b/drivers/tty/tty_ldisc.c index 534d176a78e..a69a755035b 100644 --- a/drivers/tty/tty_ldisc.c +++ b/drivers/tty/tty_ldisc.c @@ -763,8 +763,6 @@ static int tty_ldisc_reinit(struct tty_struct *tty, int ldisc) if (IS_ERR(ld)) return -1; - WARN_ON_ONCE(tty_ldisc_wait_idle(tty, 5 * HZ)); - tty_ldisc_close(tty, tty->ldisc); tty_ldisc_put(tty->ldisc); tty->ldisc = NULL; @@ -848,6 +846,8 @@ void tty_ldisc_hangup(struct tty_struct *tty) it means auditing a lot of other paths so this is a FIXME */ if (tty->ldisc) { /* Not yet closed */ + WARN_ON_ONCE(tty_ldisc_wait_idle(tty, 5 * HZ)); + if (reset == 0) { if (!tty_ldisc_reinit(tty, tty->termios->c_line)) -- 2.46.0