linux-kernel - [PATCH 1/5] iio: adc: remove unnecessary work pending test

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Message-ID: <5229B64A.1030304@huawei.com>
Date:	Fri, 6 Sep 2013 19:02:34 +0800
From:	Xie XiuQi <xiexiuqi@...wei.com>
To:	Jonathan Cameron <jic23@....ac.uk>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Dmitry Torokhov <dtor@...l.ru>,
	Thomas Gleixner <tglx@...utronix.de>,
	Andres Salomon <dilinger@...ued.net>,
	Chris Ball <cjb@...top.org>,
	Jon Nettleton <jon.nettleton@...il.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Nadia Derbey <Nadia.Derbey@...l.net>
CC:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Li Bin <huawei.libin@...wei.com>, Tejun Heo <tj@...nel.org>
Subject: [PATCH 1/5] iio: adc: remove unnecessary work pending test

Remove unnecessary work pending test before calling schedule_work().
It has been tested in queue_work_on() already. No functional changed.

Signed-off-by: Xie XiuQi <xiexiuqi@...wei.com>
Cc: Tejun Heo <tj@...nel.org>
---
 drivers/staging/iio/adc/ad7606_core.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/iio/adc/ad7606_core.c b/drivers/staging/iio/adc/ad7606_core.c
index 72868ce..c6f99069 100644
--- a/drivers/staging/iio/adc/ad7606_core.c
+++ b/drivers/staging/iio/adc/ad7606_core.c
@@ -424,10 +424,9 @@ static irqreturn_t ad7606_interrupt(int irq, void *dev_id)
 	struct iio_dev *indio_dev = dev_id;
 	struct ad7606_state *st = iio_priv(indio_dev);

-	if (iio_buffer_enabled(indio_dev)) {
-		if (!work_pending(&st->poll_work))
-			schedule_work(&st->poll_work);
-	} else {
+	if (iio_buffer_enabled(indio_dev))
+		schedule_work(&st->poll_work);
+	else {
 		st->done = true;
 		wake_up_interruptible(&st->wq_data_avail);
 	}
-- 
1.8.2.2



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