staging: unisys: visornic: check for error instead of success

Changes the conditional logic to check for an error code instead
of a success code.
Signed-off-by: David Binder <david.binder@unisys.com>
Signed-off-by: David Kershner <david.kershner@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/unisys/visornic/visornic_main.c

@@ -2091,7 +2091,9 @@ static int visornic_init(void)
 		goto cleanup_debugfs;
 
 	err = visorbus_register_visor_driver(&visornic_driver);
-	if (!err)
+	if (err)
+		goto cleanup_debugfs;
+
 	return 0;
 
 cleanup_debugfs: