From 9a663361f263f07528b153580d4dbafafb9f3be2 Mon Sep 17 00:00:00 2001
From: DarkWyrm <darkwyrm@gmail.com>
Date: Fri, 2 Jul 2004 22:02:19 +0000
Subject: [PATCH] Added a NULL pointer check. Eliminates a way to crash the
 app_server in just two keystrokes. :P

git-svn-id: file:///srv/svn/repos/haiku/trunk/current@8285 a95241bf-73f2-0310-859d-f6bbb57e9c96
---
 src/kits/app/PortLink.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/kits/app/PortLink.cpp b/src/kits/app/PortLink.cpp
index bc04aa7d7b..854f5caae6 100644
--- a/src/kits/app/PortLink.cpp
+++ b/src/kits/app/PortLink.cpp
@@ -136,7 +136,7 @@ status_t PortLink::FlushToSession()
 
 status_t PortLink::Attach(const void *data, size_t size)
 {
-	if (size <= 0)
+	if (!data || size <= 0)
 		return B_ERROR;
   
 	if (SESSION_BUFFER_SIZE - fSendPosition > (int32)size)