[PATCH] Char: tty_wakeup cleanup

tty_wakeup cleanup

- remove wake_up_interruptible(&tty->write_wait) surrounding
  tty_wakup(tty);
- substitute tty->ldisc.write_wakeup(tty) + wake_up() by tty_wakeup(tty);

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Acked-by: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 1 insertions, 6 deletions

diff --git a/drivers/usb/serial/keyspan_pda.c b/drivers/usb/serial/keyspan_pda.c
index da514cb785b3..dd0b66a6ed5d 100644
--- a/drivers/usb/serial/keyspan_pda.c
+++ b/drivers/usb/serial/keyspan_pda.c
@@ -182,13 +182,8 @@ static void keyspan_pda_wakeup_write(struct work_struct *work)
         struct keyspan_pda_private *priv =
                 container_of(work, struct keyspan_pda_private, wakeup_work);
         struct usb_serial_port *port = priv->port;
-        struct tty_struct *tty = port->tty;
 
-        /* wake up port processes */
-        wake_up_interruptible( &port->write_wait );
-
-        /* wake up line discipline */
-        tty_wakeup(tty);
+        tty_wakeup(port->tty);
 }
 
 static void keyspan_pda_request_unthrottle(struct work_struct *work)