staging: dgap: Remove redundant write_wait wakeups

Waking the write_wait queue is exactly what tty_wakeup() does;
remove the open-coded wakeups.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/dgap/dgap.c b/drivers/staging/dgap/dgap.c
index dfbae215aec3c92a00ad351ddb5f540442d26395..5413ed8c29ff4e9c82993e59039fb3a79f9ec401 100644 (file)
--- a/drivers/staging/dgap/dgap.c
+++ b/drivers/staging/dgap/dgap.c
@@ -3155,8 +3155,6 @@ static void dgap_tty_flush_buffer(struct tty_struct *tty)
 
        spin_unlock_irqrestore(&ch->ch_lock, lock_flags2);
        spin_unlock_irqrestore(&bd->bd_lock, lock_flags);
-       if (waitqueue_active(&tty->write_wait))
-               wake_up_interruptible(&tty->write_wait);
        tty_wakeup(tty);
 }
 
@@ -4953,10 +4951,6 @@ static int dgap_tty_ioctl(struct tty_struct *tty, unsigned int cmd,
                        ch->ch_pun.un_flags &= ~(UN_LOW | UN_EMPTY);
                        wake_up_interruptible(&ch->ch_pun.un_flags_wait);
                }
-               if (waitqueue_active(&tty->write_wait))
-                       wake_up_interruptible(&tty->write_wait);
-
-               /* Can't hold any locks when calling tty_wakeup! */
                spin_unlock_irqrestore(&ch->ch_lock, lock_flags2);
                spin_unlock_irqrestore(&bd->bd_lock, lock_flags);
                tty_wakeup(tty);