[PATCH xf86-input-libinput 1/2] Block input events while creating the virtual subdevices

[Peter Hutterer]

If an event comes in halfway through the new device creation we read it from
libinput's epollfd but depending on the setup stage the new device may not be
ready yet.

https://bugs.freedesktop.org/show_bug.cgi?id=97117

Signed-off-by: Peter Hutterer <peter.hutterer at who-t.net>
---
 src/xf86libinput.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/src/xf86libinput.c b/src/xf86libinput.c
index fff59b3..5873e45 100644
--- a/src/xf86libinput.c
+++ b/src/xf86libinput.c
@@ -2394,10 +2394,20 @@ xf86libinput_hotplug_device(struct xf86libinput_hotplug_info *hotplug)
 {
 	DeviceIntPtr dev;
 
+#if HAVE_THREADED_INPUT
+	input_lock();
+#else
+	int sigstate = xf86BlockSIGIO();
+#endif
 	if (NewInputDeviceRequest(hotplug->input_options,
 				  hotplug->attrs,
 				  &dev) != Success)
 		dev = NULL;
+#if HAVE_THREADED_INPUT
+	input_unlock();
+#else
+	xf86UnblockSIGIO(sigstate);
+#endif
 
 	input_option_free_list(&hotplug->input_options);
 	FreeInputAttributes(hotplug->attrs);
-- 
2.7.4