diff --git a/dlls/dsound/propset.c b/dlls/dsound/propset.c
index 4017f07be6c..35fe3253d41 100644
--- a/dlls/dsound/propset.c
+++ b/dlls/dsound/propset.c
@@ -197,20 +197,10 @@ HRESULT IKsBufferPropertySetImpl_Create(
     IDirectSoundBufferImpl *dsb,
     IKsBufferPropertySetImpl **piks)
 {
-    PIDSDRIVERPROPERTYSET ps = NULL;
     IKsBufferPropertySetImpl *iks;
     TRACE("(%p,%p)\n",dsb,piks);
     *piks = NULL;
 
-    if (!dsb->hwbuf)
-        return DSERR_INVALIDPARAM;
-
-    IDsDriver_QueryInterface(dsb->hwbuf, &IID_IDsDriverPropertySet, (void **)&ps);
-    if (!ps)
-        return DSERR_INVALIDPARAM;
-
-    IUnknown_Release(ps);
-
     iks = HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(*iks));
     if (iks == 0) {
         WARN("out of memory\n");