lkml.org 
[lkml]   [2013]   [Mar]   [11]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v5 32/44] tty: Fix hangup race with TIOCSETD ioctl
Date
The hangup may already have happened; check for that state also.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
---
drivers/tty/tty_ldisc.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/tty/tty_ldisc.c b/drivers/tty/tty_ldisc.c
index 9ace119..84ba790 100644
--- a/drivers/tty/tty_ldisc.c
+++ b/drivers/tty/tty_ldisc.c
@@ -543,10 +543,8 @@ int tty_set_ldisc(struct tty_struct *tty, int ldisc)
old_ldisc = tty->ldisc;
tty_lock(tty);

- /* FIXME: for testing only */
- WARN_ON(test_bit(TTY_HUPPED, &tty->flags));
-
- if (test_bit(TTY_HUPPING, &tty->flags)) {
+ if (test_bit(TTY_HUPPING, &tty->flags) ||
+ test_bit(TTY_HUPPED, &tty->flags)) {
/* We were raced by the hangup method. It will have stomped
the ldisc data and closed the ldisc down */
tty_ldisc_enable_pair(tty, o_tty);
--
1.8.1.2


\
 
 \ /
  Last update: 2013-03-12 04:41    [W:0.556 / U:0.428 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site