TTY: mn10300-serial, fix build breakage

By the recent `switch flipping' patches we introduced a build failure
in the driver:
mn10300-serial.c:527:19: error: 'port' redeclared as different kind of symbol

I did not notice because I did not even find a compiler for that new
architecture. Hopefully everything is all right now as I cannot test
it.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/arch/mn10300/kernel/mn10300-serial.c b/arch/mn10300/kernel/mn10300-serial.c
index 1dd20dbfd0983793f9ec797e8df55ae093df4992..bf6e949a2f87a63f701f3a23a468574da4561cfe 100644 (file)
--- a/arch/mn10300/kernel/mn10300-serial.c
+++ b/arch/mn10300/kernel/mn10300-serial.c
@@ -524,7 +524,7 @@ static int mask_test_and_clear(volatile u8 *ptr, u8 mask)
 static void mn10300_serial_receive_interrupt(struct mn10300_serial_port *port)
 {
        struct uart_icount *icount = &port->uart.icount;
-       struct tty_port *port = &port->uart.state->port;
+       struct tty_port *tport = &port->uart.state->port;
        unsigned ix;
        int count;
        u8 st, ch, push, status, overrun;
@@ -534,10 +534,10 @@ static void mn10300_serial_receive_interrupt(struct mn10300_serial_port *port)
        push = 0;
 
        count = CIRC_CNT(port->rx_inp, port->rx_outp, MNSC_BUFFER_SIZE);
-       count = tty_buffer_request_room(port, count);
+       count = tty_buffer_request_room(tport, count);
        if (count == 0) {
-               if (!port->low_latency)
-                       tty_flip_buffer_push(port);
+               if (!tport->low_latency)
+                       tty_flip_buffer_push(tport);
                return;
        }
 
@@ -545,8 +545,8 @@ try_again:
        /* pull chars out of the hat */
        ix = ACCESS_ONCE(port->rx_outp);
        if (CIRC_CNT(port->rx_inp, ix, MNSC_BUFFER_SIZE) == 0) {
-               if (push && !port->low_latency)
-                       tty_flip_buffer_push(port);
+               if (push && !tport->low_latency)
+                       tty_flip_buffer_push(tport);
                return;
        }
 
@@ -666,19 +666,19 @@ insert:
                else
                        flag = TTY_NORMAL;
 
-               tty_insert_flip_char(port, ch, flag);
+               tty_insert_flip_char(tport, ch, flag);
        }
 
        /* overrun is special, since it's reported immediately, and doesn't
         * affect the current character
         */
        if (overrun)
-               tty_insert_flip_char(port, 0, TTY_OVERRUN);
+               tty_insert_flip_char(tport, 0, TTY_OVERRUN);
 
        count--;
        if (count <= 0) {
-               if (!port->low_latency)
-                       tty_flip_buffer_push(port);
+               if (!tport->low_latency)
+                       tty_flip_buffer_push(tport);
                return;
        }