[gtk+] wayland: Free the internal selection data when the selection is cleared

[Rob Bradford <rbradford src gnome org>]

commit 08f5483fb7499771c8a997085a855d979d0ec45c
Author: Rob Bradford <rob linux intel com>
Date:   Fri Jan 13 16:34:11 2012 +0000

    wayland: Free the internal selection data when the selection is cleared

 gdk/wayland/gdkdevice-wayland.c |   11 +++++++++++
 1 files changed, 11 insertions(+), 0 deletions(-)
---
diff --git a/gdk/wayland/gdkdevice-wayland.c b/gdk/wayland/gdkdevice-wayland.c
index 26faad8..39b2417 100644
--- a/gdk/wayland/gdkdevice-wayland.c
+++ b/gdk/wayland/gdkdevice-wayland.c
@@ -787,6 +787,17 @@ data_device_selection (void                  *data,
   g_debug (G_STRLOC ": %s wl_data_device = %p wl_data_offer = %p",
            G_STRFUNC, wl_data_device, offer);
 
+  if (!offer)
+    {
+      if (device->selection_offer)
+        {
+          data_offer_unref (device->selection_offer);
+          device->selection_offer = NULL;
+        }
+
+      return;
+    }
+
   if (device->selection_offer)
     {
       data_offer_unref (device->selection_offer);