Christian Costa : dmime: Check input params in IDirectMusicSegmentState8Impl_QueryInterface.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 53562c7a843eb9e7d4b8673c2a0ae38f55ec1309
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=53562c7a843eb9e7d4b8673c2a0ae38f55ec1309

Author: Christian Costa <titan.costa at wanadoo.fr>
Date:   Sun Dec 14 19:03:56 2008 +0100

dmime: Check input params in IDirectMusicSegmentState8Impl_QueryInterface.

---

 dlls/dmime/segmentstate.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/dlls/dmime/segmentstate.c b/dlls/dmime/segmentstate.c
index 191b2f0..afa67c0 100644
--- 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)) {