Staging: batman-adv: fix early debugfs deinitialization

The debugfs files are initialized at load time only but would get
deinitialized when the module changed in it deactivate (sleeping)
state. As a consequence the debugfs files are not accessible
anymore.
Signed-off-by: NMarek Lindner <lindner_marek@yahoo.de>
Signed-off-by: NSven Eckelmann <sven.eckelmann@gmx.de>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

drivers/staging/batman-adv/main.c

@@ -148,6 +148,7 @@ void cleanup_module(void)
 {
 	deactivate_module();
 
+	debugfs_destroy();
 	unregister_netdevice_notifier(&hard_if_notifier);
 	hardif_remove_interfaces();
 
@@ -212,7 +213,6 @@ void deactivate_module(void)
 	hna_global_free();
 
 	synchronize_net();
-	debugfs_destroy();
 
 	synchronize_rcu();
 	atomic_set(&module_state, MODULE_INACTIVE);