From 548ad08909a6ef69241c93b6a76707dba20403e2 Mon Sep 17 00:00:00 2001
From: Peter Hutterer <peter.hutterer@who-t.net>
Date: Thu, 5 Nov 2015 14:35:00 +1000
Subject: [PATCH] tablet: restrict tablet_axis_has_changed to axis/proximity
 events

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Jason Gerecke <jason.gerecke@wacom.com>
---
 src/libinput.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/libinput.c b/src/libinput.c
index c1f27006..e384d8df 100644
--- a/src/libinput.c
+++ b/src/libinput.c
@@ -914,6 +914,12 @@ LIBINPUT_EXPORT int
 libinput_event_tablet_axis_has_changed(struct libinput_event_tablet *event,
 				       enum libinput_tablet_axis axis)
 {
+	require_event_type(libinput_event_get_context(&event->base),
+			   event->base.type,
+			   0,
+			   LIBINPUT_EVENT_TABLET_AXIS,
+			   LIBINPUT_EVENT_TABLET_PROXIMITY);
+
 	return (NCHARS(axis) <= sizeof(event->changed_axes)) ?
 		bit_is_set(event->changed_axes, axis) : 0;
 }