serial: tegra: Remove unused variable

The local mcr variable is never used in the tegra_uart_set_mctrl()
function, so it should be removed.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/tty/serial/serial-tegra.c b/drivers/tty/serial/serial-tegra.c
index 1d6fc60..1dba671 100644 (file)
--- a/drivers/tty/serial/serial-tegra.c
+++ b/drivers/tty/serial/serial-tegra.c
@@ -206,10 +206,8 @@ static void set_dtr(struct tegra_uart_port *tup, bool active)
 static void tegra_uart_set_mctrl(struct uart_port *u, unsigned int mctrl)
 {
        struct tegra_uart_port *tup = to_tegra_uport(u);
-       unsigned long mcr;
        int dtr_enable;
 
-       mcr = tup->mcr_shadow;
        tup->rts_active = !!(mctrl & TIOCM_RTS);
        set_rts(tup, tup->rts_active);