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tty_ldisc: don't use flush_scheduled_work() 

flush_scheduled_work() is scheduled to be deprecated.  Explicitly sync
flush the used work items instead.  Note that before this change,
flush_scheduled_work() wouldn't have properly flushed tty->buf.work if
it were on timer.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Tejun Heo 2011-01-24 17:54:12 +01:00 committed by Greg Kroah-Hartman
parent 78841462d7
commit 0a1f1a0b62
1 changed files with 15 additions and 2 deletions
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17
drivers/tty/tty_ldisc.c
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@ -534,6 +534,19 @@ static int tty_ldisc_halt(struct tty_struct *tty)
return cancel_delayed_work_sync(&tty->buf.work);
}
/**
* 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_sync(&tty->hangup_work);
flush_work_sync(&tty->SAK_work);
flush_delayed_work_sync(&tty->buf.work);
}
/**
* tty_ldisc_wait_idle - wait for the ldisc to become idle
* @tty: tty to wait for
@ -653,7 +666,7 @@ int tty_set_ldisc(struct tty_struct *tty, int ldisc)
mutex_unlock(&tty->ldisc_mutex);
flush_scheduled_work();
tty_ldisc_flush_works(tty);
retval = tty_ldisc_wait_idle(tty);
@ -905,7 +918,7 @@ void tty_ldisc_release(struct tty_struct *tty, struct tty_struct *o_tty)
tty_unlock();
tty_ldisc_halt(tty);
flush_scheduled_work();
tty_ldisc_flush_works(tty);
tty_lock();
mutex_lock(&tty->ldisc_mutex);