Code break requested for gnome-packgekit

[Richard Hughes <hughsient gmail com>]

Aisleroit seems to call into the DBus interface of gnome-packages with
a request to install zero packages. This is forwarded to PackageKit,
which duly crashes if you are running the zif backend. I've fixed up
PackageKit-zif upstream and also added a check in the daemon to block
this kind of broken request. It also makes sense to patch g-pk in
gnome-3-4 so we don't crash older versions of PackageKit.

Trivial path below, thanks.

Richard.

diff --git a/src/gpk-dbus-task.c b/src/gpk-dbus-task.c
index 2f3a6ed..936b442 100644
--- a/src/gpk-dbus-task.c
+++ b/src/gpk-dbus-task.c
@@ -1221,6 +1221,14 @@ gpk_dbus_task_install_package_names
(GpkDbusTask *dtask, gchar **packages, GpkDb

        string = g_string_new ("");
        len = g_strv_length (packages);
+       if (len == 0) {
+               error_dbus = g_error_new (GPK_DBUS_ERROR,
+                                         GPK_DBUS_ERROR_FAILED,
+                                         "no packages specified");
+               gpk_dbus_task_dbus_return_error (dtask, error_dbus);
+               g_error_free (error_dbus);
+               goto out;
+       }