[PATCH] Char: tty, delete wake_up_interruptible after tty_wakeup

tty_wakeup calls wake_up_interruptible(&tty->write_wait) itself, it's not
needed to wake up again after tty_wakeup returns.

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

diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c
index c57b1f434652ac4be95d8182067c71ba272c2895..305e46db70e48cf5013bbfc14c782834c1bae197 100644 (file)
--- a/drivers/char/tty_io.c
+++ b/drivers/char/tty_io.c
@@ -1612,7 +1612,6 @@ void start_tty(struct tty_struct *tty)
 
        /* If we have a running line discipline it may need kicking */
        tty_wakeup(tty);
-       wake_up_interruptible(&tty->write_wait);
 }
 
 EXPORT_SYMBOL(start_tty);