Bruno Jesus : dinput: Handle NULL effect envelope before testing its parameters.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 0d17228ff95a38d4d3e6714183fc8d6cf2dfebe1
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=0d17228ff95a38d4d3e6714183fc8d6cf2dfebe1

Author: Bruno Jesus <00cpxxx at gmail.com>
Date:   Mon Sep 12 16:07:56 2016 -0300

dinput: Handle NULL effect envelope before testing its parameters.

Signed-off-by: Bruno Jesus <00cpxxx at gmail.com>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>

---

 dlls/dinput/effect_linuxinput.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/dlls/dinput/effect_linuxinput.c b/dlls/dinput/effect_linuxinput.c
index fe3334a..9205c9c 100644
--- a/dlls/dinput/effect_linuxinput.c
+++ b/dlls/dinput/effect_linuxinput.c
@@ -585,9 +585,12 @@ static HRESULT WINAPI LinuxInputEffectImpl_SetParameters(
             env->fade_length = 0;
             env->fade_level = 0;
         }
-        else if(peff->lpEnvelope->dwAttackTime || peff->lpEnvelope->dwAttackLevel ||
-                peff->lpEnvelope->dwFadeTime || peff->lpEnvelope->dwFadeLevel)
-            WARN("Ignoring dinput envelope not supported in the linux effect\n");
+        else if(peff->lpEnvelope)
+        {
+            if(peff->lpEnvelope->dwAttackTime || peff->lpEnvelope->dwAttackLevel ||
+               peff->lpEnvelope->dwFadeTime || peff->lpEnvelope->dwFadeLevel)
+                WARN("Ignoring dinput envelope not supported in the linux effect\n");
+        }
     }
 
     /* Gain and Sample Period settings are not supported by the linux