[gtk+/wip/wayland-tablet: 52/61] x11: Use XInternAtom directly on poking device hardware IDs

[Carlos Garnacho <carlosg src gnome org>]

commit a1bf559ed2725876482b82749795fef1ec9344ba
Author: Carlos Garnacho <carlosg gnome org>
Date:   Tue Jun 30 16:28:59 2015 +0200

    x11: Use XInternAtom directly on poking device hardware IDs
    
    This way we don't cache the property if it wasn't previously there,
    added by the driver itself. Bailing out is due there.

 gdk/x11/gdkdevicemanager-xi2.c |   10 +++++++---
 1 files changed, 7 insertions(+), 3 deletions(-)
---
diff --git a/gdk/x11/gdkdevicemanager-xi2.c b/gdk/x11/gdkdevicemanager-xi2.c
index c65a620..1841b39 100644
--- a/gdk/x11/gdkdevicemanager-xi2.c
+++ b/gdk/x11/gdkdevicemanager-xi2.c
@@ -344,13 +344,17 @@ get_device_ids (GdkDisplay    *display,
   gulong nitems, bytes_after;
   guint32 *data;
   int rc, format;
-  Atom type;
+  Atom prop, type;
 
   gdk_x11_display_error_trap_push (display);
 
+  prop = XInternAtom (GDK_DISPLAY_XDISPLAY (display), "Device Product ID", True);
+
+  if (prop == None)
+    return 0;
+
   rc = XIGetProperty (GDK_DISPLAY_XDISPLAY (display),
-                      info->deviceid,
-                      gdk_x11_get_xatom_by_name_for_display (display, "Device Product ID"),
+                      info->deviceid, prop,
                       0, 2, False, XA_INTEGER, &type, &format, &nitems, &bytes_after,
                       (guchar **) &data);
   gdk_x11_display_error_trap_pop_ignored (display);