From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Hurley Subject: [PATCH v2 4/9] staging: dgap: Remove redundant write_wait wakeups Date: Sun, 10 Jan 2016 20:36:11 -0800 Message-ID: <1452486976-7594-5-git-send-email-peter@hurleysoftware.com> References: <1452486976-7594-1-git-send-email-peter@hurleysoftware.com> Return-path: In-Reply-To: <1452486976-7594-1-git-send-email-peter@hurleysoftware.com> Sender: linux-kernel-owner@vger.kernel.org To: Greg Kroah-Hartman Cc: Jiri Slaby , linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org, Peter Hurley List-Id: linux-serial@vger.kernel.org Waking the write_wait queue is exactly what tty_wakeup() does; remove the open-coded wakeups. Signed-off-by: Peter Hurley --- drivers/staging/dgap/dgap.c | 6 ------ 1 file changed, 6 deletions(-) diff --git a/drivers/staging/dgap/dgap.c b/drivers/staging/dgap/dgap.c index dfbae21..5413ed8 100644 --- 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); -- 2.7.0