TTY: isicom, stop using port->tty

Do not access unsafe port->tty pointer when we have a safe tty
already. Use the safe one.

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

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/tty/isicom.c b/drivers/tty/isicom.c
index d7492e183607..5f3ecbc2713e 100644
--- a/drivers/tty/isicom.c
+++ b/drivers/tty/isicom.c
@@ -603,7 +603,7 @@ static irqreturn_t isicom_interrupt(int irq, void *dev_id)
                         if (tty_port_cts_enabled(&port->port)) {
                                 if (tty->hw_stopped) {
                                         if (header & ISI_CTS) {
-                                                port->port.tty->hw_stopped = 0;
+                                                tty->hw_stopped = 0;
                                                 /* start tx ing */
                                                 port->status |= (ISI_TXOK
                                                         | ISI_CTS);