[PATCH] TTY layer buffering revamp

[pandora-kernel.git] / drivers / serial / mpsc.c

diff --git a/drivers/serial/mpsc.c b/drivers/serial/mpsc.c
index 8f83e40..0ca83ac 100644 (file)
--- a/drivers/serial/mpsc.c
+++ b/drivers/serial/mpsc.c
@@ -769,12 +769,12 @@ mpsc_rx_intr(struct mpsc_port_info *pi, struct pt_regs *regs)
                bytes_in = be16_to_cpu(rxre->bytecnt);
 
                /* Following use of tty struct directly is deprecated */
-               if (unlikely((tty->flip.count + bytes_in) >= TTY_FLIPBUF_SIZE)){
+               if (unlikely(tty_buffer_request_room(tty, bytes_in) < bytes_in)) {
                        if (tty->low_latency)
                                tty_flip_buffer_push(tty);
                        /*
-                        * If this failed then we will throw awa the bytes
-                        * but mst do so to clear interrupts.
+                        * If this failed then we will throw away the bytes
+                        * but must do so to clear interrupts.
                         */
                }