Commit da40b0b6 authored Jun 18, 2011 by Dmitry Torokhov

Input: evdev - try to wake up readers only if we have full packet



We should only wake waiters on the event device when we actually post
an EV_SYN/SYN_REPORT to the queue. Otherwise we end up making waiting
threads runnable only to go right back to sleep because the device
still isn't readable.

Reported-by: Jeffrey Brown <jeffbrown@android.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

parent 8c127f07

drivers/input/evdev.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -111,6 +111,7 @@ static void evdev_event(struct input_handle *handle,

		rcu_read_unlock();

		if (type == EV_SYN && code == SYN_REPORT)
		wake_up_interruptible(&evdev->wait);
		}