[gnome-software] plugin-appstream: Return FALSE if we set GError

[Colin Walters <walters src gnome org>]

commit 9a7e11d1e488cfc42bddbb48473300c8355ee543
Author: Colin Walters <walters verbum org>
Date:   Sun Nov 3 19:22:06 2013 -0500

    plugin-appstream: Return FALSE if we set GError
    
    Side note: an OSTree-like rigorous coding style where ret = FALSE
    always at the start of a function would make this error setting errors
    not happen.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=711368

 src/plugins/gs-plugin-appstream.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/src/plugins/gs-plugin-appstream.c b/src/plugins/gs-plugin-appstream.c
index 52509ed..91ea54c 100644
--- a/src/plugins/gs-plugin-appstream.c
+++ b/src/plugins/gs-plugin-appstream.c
@@ -328,6 +328,7 @@ gs_plugin_startup (GsPlugin *plugin, GCancellable *cancellable, GError **error)
        items = appstream_cache_get_items (plugin->priv->cache);
        if (items->len == 0) {
                g_warning ("No AppStream data, try 'make install-sample-data' in data/");
+               ret = FALSE;
                g_set_error (error,
                             GS_PLUGIN_LOADER_ERROR,
                             GS_PLUGIN_LOADER_ERROR_FAILED,