On 11.06.2013 22:08, Christian Costa wrote:

Fixes bug 26598.
---
  dlls/d3dx9_36/effect.c       |    4 ++++
  dlls/d3dx9_36/tests/effect.c |   17 +++++++++++++++++
  2 files changed, 21 insertions(+)

diff --git a/dlls/d3dx9_36/effect.c b/dlls/d3dx9_36/effect.c
index 1924c07..bab4560 100644
--- a/dlls/d3dx9_36/effect.c
+++ b/dlls/d3dx9_36/effect.c
@@ -5792,6 +5792,10 @@ HRESULT WINAPI D3DXCreateEffectEx(struct IDirect3DDevice9 *device, const void *s

      *effect = &object->ID3DXEffect_iface;

+    /* Must be set to NULL if no compilation error */
+    if (compilation_errors)
+        *compilation_errors = NULL;
+

No, this is wrong! Your test case doesn't cover all cases.