[libgovirt] proxy: Do not leak display object

[Eduardo de Barros Lima <eblima src gnome org>]

commit c78d455ef604aca4614b8815d08656a955c02774
Author: Eduardo Lima (Etrunko) <etrunko redhat com>
Date:   Thu Oct 3 17:18:58 2019 -0300

    proxy: Do not leak display object
    
    Signed-off-by: Eduardo Lima (Etrunko) <etrunko redhat com>

 govirt/ovirt-proxy.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/govirt/ovirt-proxy.c b/govirt/ovirt-proxy.c
index 0c4333f..5a7b69c 100644
--- a/govirt/ovirt-proxy.c
+++ b/govirt/ovirt-proxy.c
@@ -568,7 +568,7 @@ static void ovirt_proxy_update_vm_display_ca(OvirtProxy *proxy)
             g_object_get(G_OBJECT(display), "ca-cert", &ca_cert, NULL);
             if (ca_cert != NULL) {
                 g_byte_array_unref(ca_cert);
-                ca_cert = NULL;
+                g_object_unref(display);
                 continue;
             }