[gupnp-tools] universal-cp: If icon fetch fails, use default

[Jens Georg <jensgeorg src gnome org>]

commit 40fd188752d5dc25cd44a634e78c7041446a0140
Author: Jens Georg <mail jensge org>
Date:   Sat Jan 8 21:36:13 2022 +0100

    universal-cp: If icon fetch fails, use default
    
    Fixes #23

 src/universal-cp/device-treeview.c | 6 ++++++
 1 file changed, 6 insertions(+)
---
diff --git a/src/universal-cp/device-treeview.c b/src/universal-cp/device-treeview.c
index bb904a6..df3a649 100644
--- a/src/universal-cp/device-treeview.c
+++ b/src/universal-cp/device-treeview.c
@@ -388,6 +388,12 @@ on_device_icon_available (GUPnPDeviceInfo *info,
         GtkTreeIter   device_iter;
         const char   *udn;
 
+        // There was no icon or there was an error getting that
+        // icon. Just keep the default then
+        if (icon == NULL) {
+                return;
+        }
+
         model = gtk_tree_view_get_model (GTK_TREE_VIEW (treeview));
         g_assert (model != NULL);