Commit 11bb4cc7 authored Nov 23, 2009 by Samu Onkalo Committed by Dmitry Torokhov Nov 23, 2009

Input: polled device - do not start polling if interval is zero



If the poll interval is set to 0 via new sysfs entry and device is
opened after that, polling is started with interval 0. This causes
huge CPU load. Same happens if the rate was 0 when the device was
closed and then reopened.

Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

parent 381f3f1c

drivers/input/input-polldev.c

+3 −1

Original line number	Diff line number	Diff line
		@@ -88,6 +88,8 @@ static int input_open_polled_device(struct input_dev *input)
		if (dev->open)
		dev->open(dev);

		/* Only start polling if polling is enabled */
		if (dev->poll_interval > 0)
		queue_delayed_work(polldev_wq, &dev->work, 0);

		return 0;