TTY: switch tty_buffer_request_room to tty_port

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

Here we start with tty_buffer_request_room.

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

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/usb/serial/quatech2.c b/drivers/usb/serial/quatech2.c
index d152be97d041..1e67fd89e346 100644
--- a/drivers/usb/serial/quatech2.c
+++ b/drivers/usb/serial/quatech2.c
@@ -697,7 +697,7 @@ void qt2_process_read_urb(struct urb *urb)
                                 escapeflag = true;
                                 break;
                         case QT2_CONTROL_ESCAPE:
-                                tty_buffer_request_room(tty, 2);
+                                tty_buffer_request_room(&port->port, 2);
                                 tty_insert_flip_string(tty, ch, 2);
                                 i += 2;
                                 escapeflag = true;
@@ -713,7 +713,7 @@ void qt2_process_read_urb(struct urb *urb)
                 }
 
                 if (tty) {
-                        tty_buffer_request_room(tty, 1);
+                        tty_buffer_request_room(&port->port, 1);
                         tty_insert_flip_string(tty, ch, 1);
                 }
         }