TTY: add tty_port_tty_wakeup helper

It allows for cleaning up on a considerable amount of places. They did
port_get, wakeup, kref_put. Now the only thing needed is to call
tty_port_tty_wakeup which does exactly that.

One exception is ifx6x60 where tty_wakeup was open-coded. We now call
tty_wakeup properly there.

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

1 files changed, 2 insertions, 6 deletions

diff --git a/drivers/usb/serial/mos7720.c b/drivers/usb/serial/mos7720.c
index e0ebec3b5d6a..e956eae198fd 100644
--- a/drivers/usb/serial/mos7720.c
+++ b/drivers/usb/serial/mos7720.c
@@ -932,7 +932,6 @@ static void mos7720_bulk_in_callback(struct urb *urb)
 static void mos7720_bulk_out_data_callback(struct urb *urb)
 {
         struct moschip_port *mos7720_port;
-        struct tty_struct *tty;
         int status = urb->status;
 
         if (status) {
@@ -946,11 +945,8 @@ static void mos7720_bulk_out_data_callback(struct urb *urb)
                 return ;
         }
 
-        tty = tty_port_tty_get(&mos7720_port->port->port);
-
-        if (tty && mos7720_port->open)
-                tty_wakeup(tty);
-        tty_kref_put(tty);
+        if (mos7720_port->open)
+                tty_port_tty_wakeup(&mos7720_port->port->port);
 }
 
 /*