diff options
Diffstat (limited to 'arch/um/drivers/chan_kern.c')
| -rw-r--r-- | arch/um/drivers/chan_kern.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/arch/um/drivers/chan_kern.c b/arch/um/drivers/chan_kern.c index 73d7bc018ab..4744b5840fa 100644 --- a/arch/um/drivers/chan_kern.c +++ b/arch/um/drivers/chan_kern.c @@ -146,12 +146,22 @@ void chan_enable_winch(struct chan *chan, struct tty_struct *tty) register_winch(chan->fd, tty); } +static void line_timer_cb(struct work_struct *work) +{ + struct line *line = container_of(work, struct line, task.work); + + if (!line->throttled) + chan_interrupt(line, line->tty, line->driver->read_irq); +} + int enable_chan(struct line *line) { struct list_head *ele; struct chan *chan; int err; + INIT_DELAYED_WORK(&line->task, line_timer_cb); + list_for_each(ele, &line->chan_list) { chan = list_entry(ele, struct chan, list); err = open_one_chan(chan); @@ -552,8 +562,7 @@ int parse_chan_pair(char *str, struct line *line, int device, return 0; } -void chan_interrupt(struct line *line, struct delayed_work *task, - struct tty_struct *tty, int irq) +void chan_interrupt(struct line *line, struct tty_struct *tty, int irq) { struct chan *chan = line->chan_in; int err; @@ -564,7 +573,7 @@ void chan_interrupt(struct line *line, struct delayed_work *task, do { if (tty && !tty_buffer_request_room(tty, 1)) { - schedule_delayed_work(task, 1); + schedule_delayed_work(&line->task, 1); goto out; } err = chan->ops->read(chan->fd, &c, chan->data); |