cleanup active_xfers when the client disconnects

Signed-off-by: Uri Lublin <uril@redhat.com>
Acked-by: Frediano Ziglio <fziglio@redhat.com>

src/vdagentd/vdagentd.c

@@ -168,6 +168,7 @@ static void send_capabilities(VirtioPort *vport,
 
 static void do_client_disconnect(void)
 {
+    g_hash_table_remove_all(active_xfers);
     if (client_connected) {
         udscs_server_write_all(server, VDAGENTD_CLIENT_DISCONNECTED, 0, 0,
                                NULL, 0);