[PATCH] TTY layer buffering revamp

[deliverable/linux.git] / drivers / usb / serial / ipaq.c

diff --git a/drivers/usb/serial/ipaq.c b/drivers/usb/serial/ipaq.c
index 06d07cea0b70a3a4a0a09f6265a247b4550e8013..9a5c979895629c727fdef8d377261b30efa21944 100644 (file)
--- a/drivers/usb/serial/ipaq.c
+++ b/drivers/usb/serial/ipaq.c
@@ -711,7 +711,7 @@ static void ipaq_read_bulk_callback(struct urb *urb, struct pt_regs *regs)
        struct usb_serial_port  *port = (struct usb_serial_port *)urb->context;
        struct tty_struct       *tty;
        unsigned char           *data = urb->transfer_buffer;
-       int                     i, result;
+       int                     result;
 
        dbg("%s - port %d", __FUNCTION__, port->number);
 
@@ -724,14 +724,8 @@ static void ipaq_read_bulk_callback(struct urb *urb, struct pt_regs *regs)
 
        tty = port->tty;
        if (tty && urb->actual_length) {
-               for (i = 0; i < urb->actual_length ; ++i) {
-                       /* if we insert more than TTY_FLIPBUF_SIZE characters, we drop them. */
-                       if(tty->flip.count >= TTY_FLIPBUF_SIZE) {
-                               tty_flip_buffer_push(tty);
-                       }
-                       /* this doesn't actually push the data through unless tty->low_latency is set */
-                       tty_insert_flip_char(tty, data[i], 0);
-               }
+               tty_buffer_request_room(tty, urb->actual_length);
+               tty_insert_flip_string(tty, data, urb->actual_length);
                tty_flip_buffer_push(tty);
                bytes_in += urb->actual_length;
        }