[gdm: 2/3] display: Use autoptr to handle errors in look for existing users

[Ray Strode <halfline src gnome org>]

commit 4e6e5335d29c039bed820c43bfd1c19cb62539ff
Author: Marco Trevisan (Treviño) <mail 3v1n0 net>
Date:   Tue Oct 27 15:38:28 2020 +0100

    display: Use autoptr to handle errors in look for existing users
    
    It will make things just cleaner

 daemon/gdm-display.c | 17 +++++++----------
 1 file changed, 7 insertions(+), 10 deletions(-)
---
diff --git a/daemon/gdm-display.c b/daemon/gdm-display.c
index 687e7da4b..7c954ad24 100644
--- a/daemon/gdm-display.c
+++ b/daemon/gdm-display.c
@@ -514,9 +514,9 @@ static gboolean
 look_for_existing_users_sync (GdmDisplay *self)
 {
         GdmDisplayPrivate *priv;
-        GError *error = NULL;
-        GVariant *call_result;
-        GVariant *user_list;
+        g_autoptr(GError) error = NULL;
+        g_autoptr(GVariant) call_result = NULL;
+        g_autoptr(GVariant) user_list = NULL;
 
         priv = gdm_display_get_instance_private (self);
         priv->accountsservice_proxy = g_dbus_proxy_new_sync (priv->connection,
@@ -529,7 +529,7 @@ look_for_existing_users_sync (GdmDisplay *self)
 
         if (!priv->accountsservice_proxy) {
                 g_critical ("Failed to contact accountsservice: %s", error->message);
-                goto out;
+                return FALSE;
         }
 
         call_result = g_dbus_proxy_call_sync (priv->accountsservice_proxy,
@@ -542,16 +542,13 @@ look_for_existing_users_sync (GdmDisplay *self)
 
         if (!call_result) {
                 g_critical ("Failed to list cached users: %s", error->message);
-                goto out;
+                return FALSE;
         }
 
         g_variant_get (call_result, "(@ao)", &user_list);
         priv->have_existing_user_accounts = g_variant_n_children (user_list) > 0;
-        g_variant_unref (user_list);
-        g_variant_unref (call_result);
-out:
-        g_clear_error (&error);
-        return priv->accountsservice_proxy != NULL && call_result != NULL;
+
+        return TRUE;
 }
 
 gboolean