From b0b9897f9fcca9c276bf3ffa520b608c5e34dbac Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rico=20Sch=C3=BCller?= <kgbricola@web.de>
Date: Wed, 5 May 2010 19:01:59 +0200
Subject: [PATCH] d3d10: Add argument check in
 ID3D10Effect::GetVariableByName().

---
 dlls/d3d10/effect.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/dlls/d3d10/effect.c b/dlls/d3d10/effect.c
index 016e842b1fb..9a6c843395a 100644
--- a/dlls/d3d10/effect.c
+++ b/dlls/d3d10/effect.c
@@ -2184,6 +2184,12 @@ static struct ID3D10EffectVariable * STDMETHODCALLTYPE d3d10_effect_GetVariableB
 
     TRACE("iface %p, name %s.\n", iface, debugstr_a(name));
 
+    if (!name)
+    {
+        WARN("Invalid name specified\n");
+        return (ID3D10EffectVariable *)&null_variable;
+    }
+
     for (i = 0; i < This->local_buffer_count; ++i)
     {
         struct d3d10_effect_variable *l = &This->local_buffers[i];