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Subject[PATCH 3/5] 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>
---

drivers/usb/serial/whiteheat.c | 18 +++---------------
1 files changed, 3 insertions(+), 15 deletions(-)


diff --git a/drivers/usb/serial/whiteheat.c b/drivers/usb/serial/whiteheat.c
index e89e0d5..12ed820 100644
--- a/drivers/usb/serial/whiteheat.c
+++ b/drivers/usb/serial/whiteheat.c
@@ -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);


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