[PATCH 1/4] dmcompos: IsParamSupported of DMChordMapTrack doesn't crashes on NULL
Michael Stefaniuc
mstefani at redhat.de
Wed Jun 24 17:36:13 CDT 2015
---
dlls/dmcompos/chordmaptrack.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/dlls/dmcompos/chordmaptrack.c b/dlls/dmcompos/chordmaptrack.c
index cac652c..9077c88 100644
--- a/dlls/dmcompos/chordmaptrack.c
+++ b/dlls/dmcompos/chordmaptrack.c
@@ -139,6 +139,10 @@ static HRESULT WINAPI IDirectMusicChordMapTrack_IDirectMusicTrack_SetParam (LPDI
static HRESULT WINAPI IDirectMusicChordMapTrack_IDirectMusicTrack_IsParamSupported (LPDIRECTMUSICTRACK8 iface, REFGUID rguidType) {
ICOM_THIS_MULTI(IDirectMusicChordMapTrack, TrackVtbl, iface);
TRACE("(%p, %s)\n", This, debugstr_dmguid(rguidType));
+
+ if (!rguidType)
+ return E_POINTER;
+
if (IsEqualGUID (rguidType, &GUID_IDirectMusicChordMap)) {
TRACE("param supported\n");
return S_OK;
--
2.1.0
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