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USB: tty: sort out the request_room handling for whiteheat

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This driver has its own (surplus) backup queue system which wants removing
from the receive overflow logic.

Do this at the same time as removing the request_room logic

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Alan Cox 2010-02-17 13:06:57 +00:00 committed by Greg Kroah-Hartman
parent 5d3034ab8f
commit 67ccbd6f1a
1 changed files with 3 additions and 15 deletions
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18
drivers/usb/serial/whiteheat.c
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@ -1492,21 +1492,9 @@ static void rx_data_softint(struct work_struct *work)
wrap = list_entry(tmp, struct whiteheat_urb_wrap, list);
urb = wrap->urb;
if (tty && urb->actual_length) {
int len = tty_buffer_request_room(tty,
urb->actual_length);
/* This stuff can go away now I suspect */
if (unlikely(len < urb->actual_length)) {
spin_lock_irqsave(&info->lock, flags);
list_add(tmp, &info->rx_urb_q);
spin_unlock_irqrestore(&info->lock, flags);
tty_flip_buffer_push(tty);
schedule_work(&info->rx_work);
goto out;
}
tty_insert_flip_string(tty, urb->transfer_buffer, len);
sent += len;
}
if (tty && urb->actual_length)
sent += tty_insert_flip_string(tty,
urb->transfer_buffer, urb->actual_length);
urb->dev = port->serial->dev;
result = usb_submit_urb(urb, GFP_ATOMIC);