joy.cpl: Check if effect is allocated before releasing it.

Signed-off-by: Tim Schumacher <timschumi@gmx.de> Signed-off-by: Alexandre Julliard <julliard@winehq.org>

joy.cpl: Check if effect is allocated before releasing it.
8bc52f52 · Tim Schumacher · Alexandre Julliard · 7edbbe1e · 8bc52f52
Commit 8bc52f52 authored May 18, 2019 by Tim Schumacher Committed by Alexandre Julliard May 20, 2019
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main.c dlls/joy.cpl/main.c +2 -1

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--- a/dlls/joy.cpl/main.c
+++ b/dlls/joy.cpl/main.c
@@ -137,7 +137,8 @@ static void destroy_joysticks(struct JoystickData *data)
        if (data->joysticks[i].forcefeedback && data->joysticks[i].num_effects > 0)
        {
            for (j = 0; j < data->joysticks[i].num_effects; j++)
-                IDirectInputEffect_Release(data->joysticks[i].effects[j].effect);
+                if (data->joysticks[i].effects[j].effect)
+                    IDirectInputEffect_Release(data->joysticks[i].effects[j].effect);

            HeapFree(GetProcessHeap(), 0, data->joysticks[i].effects);
        }