dmime: Check input params in IDirectMusicSegmentState8Impl_QueryInterface.

53562c7a · Christian Costa · Alexandre Julliard · 7ed6f0a6 · 53562c7a
Commit 53562c7a authored Dec 14, 2008 by Christian Costa Committed by Alexandre Julliard Dec 15, 2008
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segmentstate.c dlls/dmime/segmentstate.c +3 -0

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--- a/dlls/dmime/segmentstate.c
+++ b/dlls/dmime/segmentstate.c
@@ -26,6 +26,9 @@ static HRESULT WINAPI IDirectMusicSegmentState8Impl_QueryInterface (LPDIRECTMUSI
 	IDirectMusicSegmentState8Impl *This = (IDirectMusicSegmentState8Impl *)iface;
 	TRACE("(%p, %s, %p)\n", This, debugstr_dmguid(riid), ppobj);

+	if (!riid || !ppobj)
+	    return E_POINTER;
+
 	if (IsEqualIID(riid, &IID_IUnknown) || 
 	    IsEqualIID(riid, &IID_IDirectMusicSegmentState) ||
 	    IsEqualIID(riid, &IID_IDirectMusicSegmentState8)) {