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>
diff --git a/drivers/tty/tty_buffer.c b/drivers/tty/tty_buffer.c
index 45d9161..f897332 100644
--- a/drivers/tty/tty_buffer.c
+++ b/drivers/tty/tty_buffer.c
@@ -235,7 +235,7 @@
/**
* tty_buffer_request_room - grow tty buffer if needed
- * @tty: tty structure
+ * @port: tty port structure
* @size: size desired
*
* Make at least size bytes of linear space available for the tty
@@ -243,9 +243,8 @@
*
* Locking: Takes port->buf.lock
*/
-int tty_buffer_request_room(struct tty_struct *tty, size_t size)
+int tty_buffer_request_room(struct tty_port *port, size_t size)
{
- struct tty_port *port = tty->port;
unsigned long flags;
int length;