[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>
diff --git a/drivers/char/ip2/i2lib.c b/drivers/char/ip2/i2lib.c
index 7804576..88b9d33 100644
--- a/drivers/char/ip2/i2lib.c
+++ b/drivers/char/ip2/i2lib.c
@@ -1373,15 +1373,7 @@
 	ip2trace (CHANN, ITRC_SICMD, 10, 2, tp->flags,
 			(1 << TTY_DO_WRITE_WAKEUP) );
 
-	wake_up_interruptible ( &tp->write_wait );
-	if ( ( tp->flags & (1 << TTY_DO_WRITE_WAKEUP) ) 
-	  && tp->ldisc.write_wakeup )
-	{
-		(tp->ldisc.write_wakeup) ( tp );
-
-		ip2trace (CHANN, ITRC_SICMD, 11, 0 );
-
-	}
+	tty_wakeup(tp);
 }
 
 static inline void