tty: usb-serial krefs

[linux-2.6-omap-h63xx.git] / drivers / usb / serial / mct_u232.c

diff --git a/drivers/usb/serial/mct_u232.c b/drivers/usb/serial/mct_u232.c
index 0ded8bd6ec8546a9ff694b2e002ab4b2b6f3758e..9b2cef81cde0284deada9dea2a6faebbee15a43f 100644 (file)
--- a/drivers/usb/serial/mct_u232.c
+++ b/drivers/usb/serial/mct_u232.c
@@ -563,10 +563,11 @@ static void mct_u232_read_int_callback(struct urb *urb)
         * Work-a-round: handle the 'usual' bulk-in pipe here
         */
        if (urb->transfer_buffer_length > 2) {
-               tty = port->port.tty;
+               tty = tty_port_tty_get(&port->port);
                if (urb->actual_length) {
                        tty_insert_flip_string(tty, data, urb->actual_length);
                        tty_flip_buffer_push(tty);
+                       tty_kref_put(tty);
                }
                goto exit;
        }
@@ -591,7 +592,7 @@ static void mct_u232_read_int_callback(struct urb *urb)
         * to look in to this before committing any code.
         */
        if (priv->last_lsr & MCT_U232_LSR_ERR) {
-               tty = port->port.tty;
+               tty = tty_port_tty_get(&port->port);
                /* Overrun Error */
                if (priv->last_lsr & MCT_U232_LSR_OE) {
                }
@@ -604,6 +605,7 @@ static void mct_u232_read_int_callback(struct urb *urb)
                /* Break Indicator */
                if (priv->last_lsr & MCT_U232_LSR_BI) {
                }
+               tty_kref_put(tty);
        }
 #endif
        spin_unlock_irqrestore(&priv->lock, flags);