TTY: switch tty_schedule_flip

Now, we start converting tty buffer functions to actually use
tty_port. This will allow us to get rid of the need of tty in many
call sites. Only tty_port will needed and hence no more
tty_port_tty_get in those paths.

This is the last one: tty_schedule_flip

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/tty/vt/keyboard.c b/drivers/tty/vt/keyboard.c
index 5aace4d..a9af1b9a 100644
--- a/drivers/tty/vt/keyboard.c
+++ b/drivers/tty/vt/keyboard.c
@@ -307,26 +307,17 @@
  */
 static void put_queue(struct vc_data *vc, int ch)
 {
-	struct tty_struct *tty = vc->port.tty;
-
 	tty_insert_flip_char(&vc->port, ch, 0);
-	if (tty) {
-		tty_schedule_flip(tty);
-	}
+	tty_schedule_flip(&vc->port);
 }
 
 static void puts_queue(struct vc_data *vc, char *cp)
 {
-	struct tty_struct *tty = vc->port.tty;
-
-	if (!tty)
-		return;
-
 	while (*cp) {
 		tty_insert_flip_char(&vc->port, *cp, 0);
 		cp++;
 	}
-	tty_schedule_flip(tty);
+	tty_schedule_flip(&vc->port);
 }
 
 static void applkey(struct vc_data *vc, int key, char mode)
@@ -582,12 +573,8 @@
 
 static void fn_send_intr(struct vc_data *vc)
 {
-	struct tty_struct *tty = vc->port.tty;
-
-	if (!tty)
-		return;
 	tty_insert_flip_char(&vc->port, 0, TTY_BREAK);
-	tty_schedule_flip(tty);
+	tty_schedule_flip(&vc->port);
 }
 
 static void fn_scroll_forw(struct vc_data *vc)