[PATCH] TTY layer buffering revamp

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

diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index 3fd2405304fdc156c588772b692962057f849d29..52bdf6fe46f27b59df7f69ac35fb6e6bb06c7e48 100644 (file)
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -321,7 +321,7 @@ static int option_write(struct usb_serial_port *port,
 
 static void option_indat_callback(struct urb *urb, struct pt_regs *regs)
 {
-       int i, err;
+       int err;
        int endpoint;
        struct usb_serial_port *port;
        struct tty_struct *tty;
@@ -338,11 +338,8 @@ static void option_indat_callback(struct urb *urb, struct pt_regs *regs)
        } else {
                tty = port->tty;
                if (urb->actual_length) {
-                       for (i = 0; i < urb->actual_length ; ++i) {
-                               if (tty->flip.count >= TTY_FLIPBUF_SIZE)
-                                       tty_flip_buffer_push(tty);
-                               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);
                } else {
                        dbg("%s: empty read urb received", __FUNCTION__);