From e5b30847db7027e72322fd56b27c52bd5f8e22c3 Mon Sep 17 00:00:00 2001
From: Norman Feske <norman.feske@genode-labs.com>
Date: Thu, 17 Jan 2013 08:23:54 +0100
Subject: [PATCH] tar_rom: let unkown file throw Root::Invalid_args

---
 os/src/server/tar_rom/main.cc | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/os/src/server/tar_rom/main.cc b/os/src/server/tar_rom/main.cc
index b068c7738..045d6551f 100755
--- a/os/src/server/tar_rom/main.cc
+++ b/os/src/server/tar_rom/main.cc
@@ -148,7 +148,10 @@ class Rom_session_component : public Genode::Rpc_object<Genode::Rom_session>
 			_tar_addr(tar_addr), _filename(filename), _file_addr(0), _file_size(0),
 			_tar_size(tar_size),
 			_file_ds(_init_file_ds())
-		{ }
+		{
+			if (!_file_ds.valid())
+				throw Genode::Root::Invalid_args();
+		}
 
 		/**
 		 * Destructor