dmband: IsParamSupported method doesn't crashes on NULL.

6e98db3d · Michael Stefaniuc · Alexandre Julliard · 3a9698f4 · 6e98db3d
Commit 6e98db3d authored Jun 25, 2015 by Michael Stefaniuc Committed by Alexandre Julliard Jun 25, 2015
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bandtrack.c dlls/dmband/bandtrack.c +4 -0

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--- a/dlls/dmband/bandtrack.c
+++ b/dlls/dmband/bandtrack.c
@@ -159,6 +159,10 @@ static HRESULT WINAPI IDirectMusicBandTrack_IDirectMusicTrack_IsParamSupported (
  ICOM_THIS_MULTI(IDirectMusicBandTrack, TrackVtbl, iface);
  
  TRACE("(%p, %s)\n", This, debugstr_dmguid(rguidType));
+
+  if (!rguidType)
+    return E_POINTER;
+
  if (IsEqualGUID (rguidType, &GUID_BandParam)
      || IsEqualGUID (rguidType, &GUID_Clear_All_Bands)
      || IsEqualGUID (rguidType, &GUID_ConnectToDLSCollection)