From 1e81d551903d548d42d04d5076181741309d23c8 Mon Sep 17 00:00:00 2001
From: Gijs Vermeulen <gijsvrm@gmail.com>
Date: Fri, 19 Jun 2020 16:10:30 +0200
Subject: [PATCH] amstream: Don't crash on NULL ddraw in
 IDirectDrawMediaStream::GetDirectDraw().

Signed-off-by: Gijs Vermeulen <gijsvrm@gmail.com>
Signed-off-by: Zebediah Figura <z.figura12@gmail.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
---
 dlls/amstream/ddrawstream.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/dlls/amstream/ddrawstream.c b/dlls/amstream/ddrawstream.c
index e2f24c3b4c8..c471a66200d 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)
     {