[PATCH v2 3/4] amstream: Don't crash on NULL ddraw in IDirectDrawMediaStream::GetDirectDraw().

[Gijs Vermeulen]

Signed-off-by: Gijs Vermeulen 
---
 dlls/amstream/ddrawstream.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/dlls/amstream/ddrawstream.c b/dlls/amstream/ddrawstream.c
index e2f24c3b4c..c471a66200 100644
--- a/dlls/amstream/ddrawstream.c
+++ b/dlls/amstream/ddrawstream.c
@@ -377,6 +377,9 @@ static HRESULT WINAPI ddraw_IDirectDrawMediaStream_GetDirectDraw(IDirectDrawMedi

TRACE("(%p)->(%p)\n", iface, ddraw);

+    if (!ddraw)
+        return E_POINTER;
+
     *ddraw = NULL;
     if (!This->ddraw)
     {