[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>

drivers/isdn/i4l/isdn_tty.c

@@ -1261,7 +1261,6 @@ isdn_tty_flush_buffer(struct tty_struct *tty)
 	}
 	isdn_tty_cleanup_xmit(info);
 	info->xmit_count = 0;
-	wake_up_interruptible(&tty->write_wait);
 	tty_wakeup(tty);
 }