diff --git a/common/JackMidiDriver.cpp b/common/JackMidiDriver.cpp
index b98b8daa..1fbd1e38 100644
--- a/common/JackMidiDriver.cpp
+++ b/common/JackMidiDriver.cpp
@@ -34,19 +34,10 @@ JackMidiDriver::JackMidiDriver(const char* name, const char* alias, JackLockedEn
         : JackDriver(name, alias, engine, table),
         fCaptureChannels(0),
         fPlaybackChannels(0)
-{
-    for (int i = 0; i < DRIVER_PORT_NUM; i++) {
-        fRingBuffer[i] = NULL;
-    }
-}
+{}
 
 JackMidiDriver::~JackMidiDriver()
-{
-    for (int i = 0; i < fCaptureChannels; i++) {
-        if (fRingBuffer[i])
-            jack_ringbuffer_free(fRingBuffer[i]);
-    }
-}
+{}
 
 int JackMidiDriver::Open(bool capturing,
                         bool playing,
@@ -60,11 +51,6 @@ int JackMidiDriver::Open(bool capturing,
 {
     fCaptureChannels = inchannels;
     fPlaybackChannels = outchannels;
-
-    for (int i = 0; i < fCaptureChannels; i++) {
-        fRingBuffer[i] = jack_ringbuffer_create(sizeof(jack_default_audio_sample_t) * BUFFER_SIZE_MAX);
-    }
-
     return JackDriver::Open(capturing, playing, inchannels, outchannels, monitor, capture_driver_name, playback_driver_name, capture_latency, playback_latency);
 }
 
diff --git a/common/JackMidiDriver.h b/common/JackMidiDriver.h
index fa471627..b7584bbe 100644
--- a/common/JackMidiDriver.h
+++ b/common/JackMidiDriver.h
@@ -40,8 +40,6 @@ class SERVER_EXPORT JackMidiDriver : public JackDriver
         int fCaptureChannels;
         int fPlaybackChannels;
 
-        jack_ringbuffer_t* fRingBuffer[DRIVER_PORT_NUM];
-
         jack_port_id_t fCapturePortList[DRIVER_PORT_NUM];
         jack_port_id_t fPlaybackPortList[DRIVER_PORT_NUM];
 
diff --git a/windows/portaudio/JackPortAudioDriver.cpp b/windows/portaudio/JackPortAudioDriver.cpp
index 603c1fff..a314e30c 100644
--- a/windows/portaudio/JackPortAudioDriver.cpp
+++ b/windows/portaudio/JackPortAudioDriver.cpp
@@ -82,7 +82,7 @@ namespace Jack
                                             : 0;
         outputParameters.hostApiSpecificStreamInfo = NULL;
 
-        PaError err = Pa_OpenStream(&fStream,
+        return Pa_OpenStream(&fStream,
                             (fInputDevice == paNoDevice) ? 0 : &inputParameters,
                             (fOutputDevice == paNoDevice) ? 0 : &outputParameters,
                             fEngineControl->fSampleRate,
@@ -90,8 +90,6 @@ namespace Jack
                             paNoFlag,  // Clipping is on...
                             Render,
                             this);
-
-        return err;
     }
 
     int JackPortAudioDriver::Open(jack_nframes_t buffer_size,