[clutter/clutter-1.20] evdev: Fix compiler warning

[Emmanuele Bassi <ebassi src gnome org>]

commit bd3e4f170932f782178819239e5b4c8b3d4d2707
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Thu Aug 21 15:26:14 2014 +0100

    evdev: Fix compiler warning

 clutter/evdev/clutter-device-manager-evdev.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/clutter/evdev/clutter-device-manager-evdev.c b/clutter/evdev/clutter-device-manager-evdev.c
index 7b833b5..77a8ec6 100644
--- a/clutter/evdev/clutter-device-manager-evdev.c
+++ b/clutter/evdev/clutter-device-manager-evdev.c
@@ -1866,7 +1866,7 @@ clutter_evdev_set_keyboard_layout_index (ClutterDeviceManager *evdev,
   xkb_mod_mask_t locked_mods;
   struct xkb_state *state;
 
-  g_return_val_if_fail (CLUTTER_IS_DEVICE_MANAGER_EVDEV (evdev), NULL);
+  g_return_if_fail (CLUTTER_IS_DEVICE_MANAGER_EVDEV (evdev));
 
   manager_evdev = CLUTTER_DEVICE_MANAGER_EVDEV (evdev);
   state = manager_evdev->priv->main_seat->xkb;