[cogl] cogland: Don't leak the shell surface struct if requested twice

[Neil Roberts <nroberts src gnome org>]

commit 622d41b04c2689a8e4fb6e1769aaf887a04242e8
Author: Neil Roberts <neil linux intel com>
Date:   Thu Apr 11 12:43:53 2013 +0100

    cogland: Don't leak the shell surface struct if requested twice
    
    If the shell surface is requested twice then Cogland will hit an error
    path but it would end up leaking the CoglandShellSurface struct it
    allocated.
    
    Reviewed-by: Robert Bragg <robert linux intel com>

 examples/cogland.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
---
diff --git a/examples/cogland.c b/examples/cogland.c
index d9efa37..7231f02 100644
--- a/examples/cogland.c
+++ b/examples/cogland.c
@@ -971,7 +971,7 @@ get_shell_surface (struct wl_client *client,
                    struct wl_resource *surface_resource)
 {
   CoglandSurface *surface = surface_resource->data;
-  CoglandShellSurface *shell_surface = g_new0 (CoglandShellSurface, 1);
+  CoglandShellSurface *shell_surface;
 
   if (surface->has_shell_surface)
     {
@@ -981,6 +981,7 @@ get_shell_surface (struct wl_client *client,
       return;
     }
 
+  shell_surface = g_new0 (CoglandShellSurface, 1);
   shell_surface->resource.destroy = destroy_shell_surface;
   shell_surface->resource.object.id = id;
   shell_surface->resource.object.interface = &wl_shell_surface_interface;