Brendan Shanks : dinput: Fix crash in dump_DIEFFECT() when rglDirection is unexpectedly NULL.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: f925becd4af104b196440442c50858ea88d3cf17
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=f925becd4af104b196440442c...

Author: Brendan Shanks 
Date:   Tue Mar 24 17:13:36 2020 -0700

dinput: Fix crash in dump_DIEFFECT() when rglDirection is unexpectedly NULL.

Signed-off-by: Brendan Shanks 
Signed-off-by: Alexandre Julliard

---

dlls/dinput/joystick.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dlls/dinput/joystick.c b/dlls/dinput/joystick.c
index 01611b0e44..19dd9ad736 100644
--- a/dlls/dinput/joystick.c
+++ b/dlls/dinput/joystick.c
@@ -207,7 +207,7 @@ void dump_DIEFFECT(LPCDIEFFECT eff, REFGUID guid, DWORD dwFlags)
     TRACE("  - dwTriggerButton: %d\n", eff->dwTriggerButton);
     TRACE("  - dwTriggerRepeatInterval: %d\n", eff->dwTriggerRepeatInterval);
     TRACE("  - rglDirection: %p\n", eff->rglDirection);
-    if (dwFlags & DIEP_DIRECTION) {
+    if (dwFlags & DIEP_DIRECTION && eff->rglDirection) {
         TRACE("    ");
         for (i = 0; i < eff->cAxes; ++i)
             TRACE("%d ", eff->rglDirection[i]);