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>

1 files changed, 4 insertions, 2 deletions

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;
 }