[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/amiserial.c b/drivers/char/amiserial.c
index feb4ac8..39880eb 100644
--- a/drivers/char/amiserial.c
+++ b/drivers/char/amiserial.c
@@ -527,10 +527,8 @@
 	if (!tty)
 		return;
 
-	if (test_and_clear_bit(RS_EVENT_WRITE_WAKEUP, &info->event)) {
+	if (test_and_clear_bit(RS_EVENT_WRITE_WAKEUP, &info->event))
 		tty_wakeup(tty);
-		wake_up_interruptible(&tty->write_wait);
-	}
 }
 
 /*
@@ -968,7 +966,6 @@
 	local_irq_save(flags);
 	info->xmit.head = info->xmit.tail = 0;
 	local_irq_restore(flags);
-	wake_up_interruptible(&tty->write_wait);
 	tty_wakeup(tty);
 }