USB: tty: sort out the request_room handling for whiteheat
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>
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 @@
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);