From a1852086804d8b1d22193530072f6a76e4fcb909 Mon Sep 17 00:00:00 2001
From: Jon Griffiths <jon_p_griffiths@yahoo.com>
Date: Sun, 29 Jun 2008 05:52:23 -0700
Subject: [PATCH] oleaut32: Null doc string params return E_INVALIDARG.

---
 dlls/oleaut32/typelib2.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/dlls/oleaut32/typelib2.c b/dlls/oleaut32/typelib2.c
index 653e8814e52..de8c7db44e3 100644
--- a/dlls/oleaut32/typelib2.c
+++ b/dlls/oleaut32/typelib2.c
@@ -1275,6 +1275,8 @@ static HRESULT WINAPI ICreateTypeInfo2_fnSetDocString(
     int offset;
 
     TRACE("(%p,%s)\n", iface, debugstr_w(pStrDoc));
+    if (!pStrDoc)
+        return E_INVALIDARG;
 
     offset = ctl2_alloc_string(This->typelib, pStrDoc);
     if (offset == -1) return E_OUTOFMEMORY;
@@ -3154,6 +3156,8 @@ static HRESULT WINAPI ICreateTypeLib2_fnSetDocString(ICreateTypeLib2 * iface, LP
     int offset;
 
     TRACE("(%p,%s)\n", iface, debugstr_w(szDoc));
+    if (!szDoc)
+        return E_INVALIDARG;
 
     offset = ctl2_alloc_string(This, szDoc);
     if (offset == -1) return E_OUTOFMEMORY;