diff options
Diffstat (limited to 'drivers/tty/tty_ldisc.c')
| -rw-r--r-- | drivers/tty/tty_ldisc.c | 24 |
1 files changed, 4 insertions, 20 deletions
diff --git a/drivers/tty/tty_ldisc.c b/drivers/tty/tty_ldisc.c index cbb945b03cdb..7f7e1a3d3825 100644 --- a/drivers/tty/tty_ldisc.c +++ b/drivers/tty/tty_ldisc.c @@ -499,18 +499,6 @@ static void tty_ldisc_restore(struct tty_struct *tty, struct tty_ldisc *old) } /** - * tty_ldisc_flush_works - flush all works of a tty - * @tty: tty device to flush works for - * - * Sync flush all works belonging to @tty. - */ -static void tty_ldisc_flush_works(struct tty_struct *tty) -{ - flush_work(&tty->SAK_work); - flush_work(&tty->hangup_work); -} - -/** * tty_ldisc_wait_idle - wait for the ldisc to become idle * @tty: tty to wait for * @timeout: for how long to wait at most @@ -698,13 +686,13 @@ int tty_set_ldisc(struct tty_struct *tty, int ldisc) retval = tty_ldisc_halt(tty, o_tty, 5 * HZ); /* - * Wait for ->hangup_work and ->buf.work handlers to terminate. + * Wait for hangup to complete, if pending. * We must drop the mutex here in case a hangup is also in process. */ mutex_unlock(&tty->ldisc_mutex); - tty_ldisc_flush_works(tty); + flush_work(&tty->hangup_work); tty_lock(tty); mutex_lock(&tty->ldisc_mutex); @@ -951,15 +939,11 @@ static void tty_ldisc_kill(struct tty_struct *tty) void tty_ldisc_release(struct tty_struct *tty, struct tty_struct *o_tty) { /* - * Prevent flush_to_ldisc() from rescheduling the work for later. Then - * kill any delayed work. As this is the final close it does not - * race with the set_ldisc code path. + * Shutdown this line discipline. As this is the final close, + * it does not race with the set_ldisc code path. */ tty_ldisc_halt(tty, o_tty, MAX_SCHEDULE_TIMEOUT); - tty_ldisc_flush_works(tty); - if (o_tty) - tty_ldisc_flush_works(o_tty); tty_lock_pair(tty, o_tty); /* This will need doing differently if we need to lock */ |