nfs4: Several minor fixes

src/add-ons/kernel/file_systems/nfs4/Connection.cpp

@@ -593,7 +593,7 @@ ConnectionListener::Listen(ConnectionListener** _listener, uint16 port)
 
 
 status_t
-ConnectionListener::AcceptConnection(Connection** _connection)
+ConnectionListener::AcceptConnection(Connection** connection)
 {
 	object_wait_info object[2];
 	object[0].object = fWaitCancel;
@@ -623,15 +623,13 @@ ConnectionListener::AcceptConnection(Connection** _connection)
 	ServerAddress address;
 	address.fProtocol = IPPROTO_TCP;
 	address.fAddress = addr;
-	Connection* connection;
 
-	status_t result = Connection::SetTo(&connection, sock, address);
+	status_t result = Connection::SetTo(connection, sock, address);
 	if (result != B_OK) {
 		close(sock);
 		return result;
 	}
 
-	*_connection = connection;
 	return B_OK;
 }
 

src/add-ons/kernel/file_systems/nfs4/RPCCallbackRequest.cpp

@@ -26,7 +26,7 @@ enum {
 	PROGRAM_NFS_CB	= 0x40000000
 };
 
-#define NFS_VERSION	4
+#define NFS_CB_VERSION	1
 
 
 CallbackRequest::CallbackRequest(void *buffer, int size)
@@ -46,6 +46,9 @@ CallbackRequest::CallbackRequest(void *buffer, int size)
 	if (fStream.GetUInt() != PROGRAM_NFS_CB)
 		return;
 
+	if (fStream.GetUInt() != NFS_CB_VERSION)
+		return;
+
 	fProcedure = fStream.GetUInt();
 
 	fStream.GetOpaque(NULL);

src/add-ons/kernel/file_systems/nfs4/RPCCallbackServer.cpp

@@ -170,7 +170,7 @@ CallbackServer::NewConnection(Connection* connection)
 		return B_NO_MEMORY;
 
 	arguments[0] = this;
-	arguments[1] = connection;
+	arguments[1] = entry;
 
 	thread_id thread;
 	thread = spawn_kernel_thread(&CallbackServer::ConnectionThreadLauncher,
@@ -224,7 +224,7 @@ status_t
 CallbackServer::ConnectionThread(ConnectionEntry* entry)
 {
 	Connection* connection = entry->fConnection;
-	dprintf("NEW CONNECTION\n");
+
 	while (fThreadRunning) {
 		uint32 size;
 		void* buffer;