Input: mousedev - do not wake up readers when receiving 0-motion (8121152c) · Commits · e / devices / android_kernel_fairphone_FP3

drivers/input/mousedev.c

+6 −2

Original line number	Diff line number	Diff line
		@@ -220,6 +220,7 @@ static void mousedev_notify_readers(struct mousedev *mousedev, struct mousedev_h
		struct mousedev_list *list;
		struct mousedev_motion *p;
		unsigned long flags;
		int wake_readers = 0;

		list_for_each_entry(list, &mousedev->list, node) {
		spin_lock_irqsave(&list->packet_lock, flags);
		@@ -255,10 +256,13 @@ static void mousedev_notify_readers(struct mousedev *mousedev, struct mousedev_h

		spin_unlock_irqrestore(&list->packet_lock, flags);

		if (list->ready)
		if (list->ready) {
		kill_fasync(&list->fasync, SIGIO, POLL_IN);
		wake_readers = 1;
		}
		}

		if (wake_readers)
		wake_up_interruptible(&mousedev->wait);
		}