[gnome-software/gnome-3-30] fwupd: Avoid a critical warning when the device vendor is not set

[Kalev Lember <klember src gnome org>]

commit e4cdf784d019de717280b2e4c87e62c2be057861
Author: Richard Hughes <richard hughsie com>
Date:   Mon Oct 8 14:46:45 2018 +0100

    fwupd: Avoid a critical warning when the device vendor is not set

 plugins/fwupd/gs-fwupd-app.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
---
diff --git a/plugins/fwupd/gs-fwupd-app.c b/plugins/fwupd/gs-fwupd-app.c
index e911a4a1..982e1951 100644
--- a/plugins/fwupd/gs-fwupd-app.c
+++ b/plugins/fwupd/gs-fwupd-app.c
@@ -98,7 +98,8 @@ gs_fwupd_app_set_from_device (GsApp *app, FwupdDevice *dev)
        }
        if (fwupd_device_get_name (dev) != NULL) {
                g_autofree gchar *vendor_name = NULL;
-               if (g_str_has_prefix (fwupd_device_get_name (dev),
+               if (fwupd_device_get_vendor (dev) == NULL ||
+                   g_str_has_prefix (fwupd_device_get_name (dev),
                                      fwupd_device_get_vendor (dev))) {
                        vendor_name = g_strdup (fwupd_device_get_name (dev));
                } else {