TTY: switch tty_insert_flip_string

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.

tty_insert_flip_string this time.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/net/bluetooth/rfcomm/tty.c b/net/bluetooth/rfcomm/tty.c
index bd6fd0f..cbec3b6 100644
--- a/net/bluetooth/rfcomm/tty.c
+++ b/net/bluetooth/rfcomm/tty.c
@@ -556,7 +556,7 @@
 
 	BT_DBG("dlc %p tty %p len %d", dlc, tty, skb->len);
 
-	tty_insert_flip_string(tty, skb->data, skb->len);
+	tty_insert_flip_string(&dev->port, skb->data, skb->len);
 	tty_flip_buffer_push(tty);
 
 	kfree_skb(skb);
@@ -633,7 +633,8 @@
 	rfcomm_dlc_lock(dev->dlc);
 
 	while ((skb = skb_dequeue(&dev->pending))) {
-		inserted += tty_insert_flip_string(tty, skb->data, skb->len);
+		inserted += tty_insert_flip_string(&dev->port, skb->data,
+				skb->len);
 		kfree_skb(skb);
 	}