From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Date: Wed, 3 Aug 2011 05:22:46 +0000 (-0700)
Subject: Input: polldev - immediately poll device upon opening
X-Git-Tag: firefly_0821_release~176^2~541^2~380^2~67
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=5e3e4eb1bf212d9ae4997ebcbe2fdfb348b70213;p=firefly-linux-kernel-4.4.55.git

Input: polldev - immediately poll device upon opening

To allow open/ioctl(EVIOCGABS)/close use pattern for polled devices read
the device in context of open() call instead of offloading the first read
to a workqueue. This will ensure that once call to open() returns device
would have cached reasonably recent axis values that can be retrieved via
appropriate ioctl.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
---

diff --git a/drivers/input/input-polldev.c b/drivers/input/input-polldev.c
index b1aabde87523..b253973881b8 100644
--- a/drivers/input/input-polldev.c
+++ b/drivers/input/input-polldev.c
@@ -49,8 +49,10 @@ static int input_open_polled_device(struct input_dev *input)
 		dev->open(dev);
 
 	/* Only start polling if polling is enabled */
-	if (dev->poll_interval > 0)
-		queue_delayed_work(system_freezable_wq, &dev->work, 0);
+	if (dev->poll_interval > 0) {
+		dev->poll(dev);
+		input_polldev_queue_work(dev);
+	}
 
 	return 0;
 }