[gnome-initial-setup/82-support-wi-fi-devices-appearing-dynamically] network: use more autoptrs

[Will Thompson <wjt src gnome org>]

commit d3c2a1c26f1b838736b285e1c6dc806af139fde2
Author: Will Thompson <will willthompson co uk>
Date:   Mon Jan 20 11:08:57 2020 +0000

    network: use more autoptrs
    
    No functional change, just a bit of clean-up.

 .../pages/network/gis-network-page.c                | 21 +++++++++------------
 1 file changed, 9 insertions(+), 12 deletions(-)
---
diff --git a/gnome-initial-setup/pages/network/gis-network-page.c 
b/gnome-initial-setup/pages/network/gis-network-page.c
index e4d5165..4836964 100644
--- a/gnome-initial-setup/pages/network/gis-network-page.c
+++ b/gnome-initial-setup/pages/network/gis-network-page.c
@@ -470,16 +470,15 @@ connection_activate_cb (GObject *object,
                         gpointer user_data)
 {
   NMClient *client = NM_CLIENT (object);
-  NMActiveConnection *connection;
-  GError *error = NULL;
+  NMActiveConnection *connection = NULL;
+  g_autoptr(GError) error = NULL;
 
   connection = nm_client_activate_connection_finish (client, result, &error);
-  if (connection) {
-    g_object_unref (connection);
+  if (connection != NULL) {
+    g_clear_object (&connection);
   } else {
     /* failed to activate */
     g_warning ("Failed to activate a connection: %s", error->message);
-    g_error_free (error);
   }
 }
 
@@ -489,16 +488,15 @@ connection_add_activate_cb (GObject *object,
                             gpointer user_data)
 {
   NMClient *client = NM_CLIENT (object);
-  NMActiveConnection *connection;
-  GError *error = NULL;
+  NMActiveConnection *connection = NULL;
+  g_autoptr(GError) error = NULL;
 
   connection = nm_client_add_and_activate_connection_finish (client, result, &error);
-  if (connection) {
-    g_object_unref (connection);
+  if (connection != NULL) {
+    g_clear_object (&connection);
   } else {
     /* failed to activate */
     g_warning ("Failed to add and activate a connection: %s", error->message);
-    g_error_free (error);
   }
 }
 
@@ -758,7 +756,7 @@ gis_network_page_constructed (GObject *object)
 {
   GisNetworkPage *page = GIS_NETWORK_PAGE (object);
   GisNetworkPagePrivate *priv = gis_network_page_get_instance_private (page);
-  GError *error = NULL;
+  g_autoptr(GError) error = NULL;
 
   G_OBJECT_CLASS (gis_network_page_parent_class)->constructed (object);
 
@@ -777,7 +775,6 @@ gis_network_page_constructed (GObject *object)
   if (!priv->nm_client) {
     g_warning ("Can't create NetworkManager client, hiding network page: %s",
                error->message);
-    g_error_free (error);
     sync_complete (page);
     return;
   }