[PATCH -next 1/9] tty: WARN if buffer work racing with tty free
From: Peter Hurley <hidden>
Date: 2012-12-04 07:08:49
Also in:
lkml
Subsystem:
the rest, tty layer and serial drivers · Maintainers:
Linus Torvalds, Greg Kroah-Hartman, Jiri Slaby
Signed-off-by: Peter Hurley <redacted> --- drivers/tty/tty_io.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
index 78c3000..3d2b6d7 100644
--- a/drivers/tty/tty_io.c
+++ b/drivers/tty/tty_io.c@@ -1511,6 +1511,8 @@ static void queue_release_one_tty(struct kref *kref) { struct tty_struct *tty = container_of(kref, struct tty_struct, kref); + WARN_ON(work_pending(&tty->port->buf.work)); + /* The hangup queue is now free so we can reuse it rather than waste a chunk of memory for each port */ INIT_WORK(&tty->hangup_work, release_one_tty);
--
1.8.0