[gnome-software] trivial: No critical warnings when installing local files

[Richard Hughes <rhughes src gnome org>]

commit 5aa0999e71da21f2d67b1032dbd0ad5a1f725ecc
Author: Richard Hughes <richard hughsie com>
Date:   Mon Apr 25 15:07:25 2016 +0100

    trivial: No critical warnings when installing local files

 src/plugins/gs-plugin-packagekit-local.c |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)
---
diff --git a/src/plugins/gs-plugin-packagekit-local.c b/src/plugins/gs-plugin-packagekit-local.c
index db55b7a..b35549e 100644
--- a/src/plugins/gs-plugin-packagekit-local.c
+++ b/src/plugins/gs-plugin-packagekit-local.c
@@ -80,8 +80,10 @@ gs_plugin_packagekit_progress_cb (PkProgress *progress,
                        gs_plugin_status_update (plugin, NULL, plugin_status);
        } else if (type == PK_PROGRESS_TYPE_PERCENTAGE) {
                gint percentage = pk_progress_get_percentage (progress);
-               if (percentage >= 0 && percentage <= 100)
-                       gs_app_set_progress (data->app, percentage);
+               if (percentage >= 0 && percentage <= 100) {
+                       if (data->app != NULL)
+                               gs_app_set_progress (data->app, percentage);
+               }
        }
 }