diff --git a/dlls/quartz/avisplit.c b/dlls/quartz/avisplit.c
index ee03e0833dc..ccb4ceca044 100644
--- a/dlls/quartz/avisplit.c
+++ b/dlls/quartz/avisplit.c
@@ -260,8 +260,7 @@ static HRESULT AVISplitter_next_request(AVISplitterImpl *This, DWORD streamnumbe
 
         if (rtSampleStart != rtSampleStop)
         {
-            hr = IMediaSample_SetTime(sample, &rtSampleStart, &rtSampleStop);
-
+            IMediaSample_SetTime(sample, &rtSampleStart, &rtSampleStop);
             hr = IAsyncReader_Request(pin->pReader, sample, streamnumber);
 
             if (FAILED(hr))
@@ -338,7 +337,7 @@ static HRESULT AVISplitter_Receive(AVISplitterImpl *This, IMediaSample *sample,
     }
     rtstart = (double)(start - pin->pin.pin.tStart) / pin->pin.pin.dRate;
     rtstop = (double)(stop - pin->pin.pin.tStart) / pin->pin.pin.dRate;
-    hr = IMediaSample_SetMediaTime(sample, &start, &stop);
+    IMediaSample_SetMediaTime(sample, &start, &stop);
     IMediaSample_SetTime(sample, &rtstart, &rtstop);
     IMediaSample_SetMediaTime(sample, &start, &stop);
 
diff --git a/dlls/quartz/mpegsplit.c b/dlls/quartz/mpegsplit.c
index 6f098226a8c..1ed352b1707 100644
--- a/dlls/quartz/mpegsplit.c
+++ b/dlls/quartz/mpegsplit.c
@@ -708,8 +708,7 @@ static HRESULT MPEGSplitter_first_request(LPVOID iface)
         if (rtSampleStop > pin->rtStop)
             rtSampleStop = MEDIATIME_FROM_BYTES(ALIGNUP(BYTES_FROM_MEDIATIME(pin->rtStop), pin->cbAlign));
 
-        hr = IMediaSample_SetTime(sample, &rtSampleStart, &rtSampleStop);
-
+        IMediaSample_SetTime(sample, &rtSampleStart, &rtSampleStop);
         IMediaSample_SetPreroll(sample, FALSE);
         IMediaSample_SetDiscontinuity(sample, TRUE);
         IMediaSample_SetSyncPoint(sample, 1);
diff --git a/dlls/quartz/pin.c b/dlls/quartz/pin.c
index 73b63061f80..78b6fa2195c 100644
--- a/dlls/quartz/pin.c
+++ b/dlls/quartz/pin.c
@@ -75,7 +75,6 @@ static HRESULT SendFurther( IPin *from, SendPinFunc fnMiddle, LPVOID arg, SendPi
     hr = IPin_QueryInternalConnections( from, NULL, &amount );
     if (hr != E_NOTIMPL && amount)
         FIXME("Use QueryInternalConnections!\n");
-     hr = S_OK;
 
     pin_info.pFilter = NULL;
     hr = IPin_QueryPinInfo( from, &pin_info );
diff --git a/dlls/quartz/waveparser.c b/dlls/quartz/waveparser.c
index 113a461b8f9..2ceb0fda1ab 100644
--- a/dlls/quartz/waveparser.c
+++ b/dlls/quartz/waveparser.c
@@ -117,7 +117,7 @@ static HRESULT WAVEParser_Sample(LPVOID iface, IMediaSample * pSample, DWORD_PTR
         if (rtSampleStop > pin->rtStop)
             rtSampleStop = MEDIATIME_FROM_BYTES(ALIGNUP(BYTES_FROM_MEDIATIME(pin->rtStop), pin->cbAlign));
 
-        hr = IMediaSample_SetTime(newsample, &rtSampleStart, &rtSampleStop);
+        IMediaSample_SetTime(newsample, &rtSampleStart, &rtSampleStop);
 
         pin->rtCurrent = pin->rtNext;
         pin->rtNext = rtSampleStop;
@@ -290,7 +290,7 @@ static HRESULT WAVEParser_InputPin_PreConnect(IPin * iface, IPin * pConnectPin,
     amt.cbFormat = chunk.cb;
     amt.pbFormat = CoTaskMemAlloc(amt.cbFormat);
     amt.pUnk = NULL;
-    hr = IAsyncReader_SyncRead(This->pReader, pos, amt.cbFormat, amt.pbFormat);
+    IAsyncReader_SyncRead(This->pReader, pos, amt.cbFormat, amt.pbFormat);
     amt.subtype = MEDIATYPE_Audio;
     amt.subtype.Data1 = ((WAVEFORMATEX*)amt.pbFormat)->wFormatTag;
 
@@ -376,7 +376,7 @@ static HRESULT WAVEParser_first_request(LPVOID iface)
         if (rtSampleStop > pin->rtStop)
             rtSampleStop = MEDIATIME_FROM_BYTES(ALIGNUP(BYTES_FROM_MEDIATIME(pin->rtStop), pin->cbAlign));
 
-        hr = IMediaSample_SetTime(sample, &rtSampleStart, &rtSampleStop);
+        IMediaSample_SetTime(sample, &rtSampleStart, &rtSampleStop);
 
         pin->rtCurrent = pin->rtNext;
         pin->rtNext = rtSampleStop;