[mutter] wayland: Fix infinite loop in touch_handle_cancel_event()

[Carlos Garnacho <carlosg src gnome org>]

commit 5e395fb676bc5baba7d5bf934ffde3384a59f4a7
Author: Carlos Garnacho <carlosg gnome org>
Date:   Tue Jul 22 01:38:21 2014 +0200

    wayland: Fix infinite loop in touch_handle_cancel_event()
    
    https://bugzilla.gnome.org/show_bug.cgi?id=733631

 src/wayland/meta-wayland-touch.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/src/wayland/meta-wayland-touch.c b/src/wayland/meta-wayland-touch.c
index 4922186..012a6a5 100644
--- a/src/wayland/meta-wayland-touch.c
+++ b/src/wayland/meta-wayland-touch.c
@@ -361,7 +361,7 @@ touch_send_frame_event (MetaWaylandTouch *touch)
 {
   GList *surfaces, *s;
 
-  surfaces = s = touch_get_surfaces (touch, TRUE);
+  surfaces = touch_get_surfaces (touch, TRUE);
 
   for (s = surfaces; s; s = s->next)
     {
@@ -452,7 +452,7 @@ touch_handle_cancel_event (MetaWaylandTouch      *touch,
 
   surfaces = s = touch_get_surfaces (touch, FALSE);
 
-  while (s)
+  for (s = surfaces; s; s = s->next)
     {
       MetaWaylandTouchSurface *touch_surface = s->data;
       struct wl_resource *resource;