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| author | ed <ed@FreeBSD.org> | 2008-12-21 21:16:57 +0000 |
|---|---|---|
| committer | ed <ed@FreeBSD.org> | 2008-12-21 21:16:57 +0000 |
| commit | 8cd1b937417632dbc19c54113e5fad066faa9952 (patch) | |
| tree | 8434e826bf24020020d358447548538cc5b81047 /sys/kern/tty_pts.c | |
| parent | 63e9bb0efa27c0ce3aad11403d5145b46448135a (diff) | |
| download | FreeBSD-src-8cd1b937417632dbc19c54113e5fad066faa9952.zip FreeBSD-src-8cd1b937417632dbc19c54113e5fad066faa9952.tar.gz | |
Set PTS_FINISHED before waking up any threads.
Inside ptsdrv_{in,out}wakeup() we call KNOTE_LOCKED() to wake up any
kevent(2) users. Because the kqueue handlers are executed synchronously,
we must set PTS_FINISHED before calling ptsdrv_{in,out}wakeup().
Discovered by: nork
Diffstat (limited to 'sys/kern/tty_pts.c')
| -rw-r--r-- | sys/kern/tty_pts.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/sys/kern/tty_pts.c b/sys/kern/tty_pts.c index c767daa..49ea84c 100644 --- a/sys/kern/tty_pts.c +++ b/sys/kern/tty_pts.c @@ -630,10 +630,9 @@ ptsdrv_close(struct tty *tp) struct pts_softc *psc = tty_softc(tp); /* Wake up any blocked readers/writers. */ + psc->pts_flags |= PTS_FINISHED; ptsdrv_outwakeup(tp); ptsdrv_inwakeup(tp); - - psc->pts_flags |= PTS_FINISHED; } static void |
