[gtk+] x11: Use XInternAtom directly on poking device hardware IDs

[Carlos Garnacho <carlosg src gnome org>]

commit 6febc2291878b102c3f3d083977b3068f36fe49e
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 310e24e..497a18a 100644
--- a/gdk/x11/gdkdevicemanager-xi2.c
+++ b/gdk/x11/gdkdevicemanager-xi2.c
@@ -345,13 +345,17 @@ 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);