diff --git a/drivers/usb/usbaudio/filter.c b/drivers/usb/usbaudio/filter.c
index 040dbcb0801..69e61e77af7 100644
--- a/drivers/usb/usbaudio/filter.c
+++ b/drivers/usb/usbaudio/filter.c
@@ -326,7 +326,6 @@ CountTopologyComponents(
     PUSB_AUDIO_CONTROL_INPUT_TERMINAL_DESCRIPTOR InputTerminalDescriptor;
     PUSB_AUDIO_CONTROL_FEATURE_UNIT_DESCRIPTOR FeatureUnitDescriptor;
     PUSB_AUDIO_CONTROL_MIXER_UNIT_DESCRIPTOR MixerUnitDescriptor;
-    PUSB_AUDIO_CONTROL_SELECTOR_UNIT_DESCRIPTOR SelectorUnitDescriptor;
     ULONG NodeCount = 0, Length, Index;
     ULONG DescriptorCount = 0;
     UCHAR Value;
@@ -387,7 +386,6 @@ CountTopologyComponents(
                     }
                     else if (InputTerminalDescriptor->bDescriptorSubtype == 0x05 /* SELECTOR_UNIT */)
                     {
-                        SelectorUnitDescriptor = (PUSB_AUDIO_CONTROL_SELECTOR_UNIT_DESCRIPTOR)InputTerminalDescriptor;
                         DescriptorCount++;
                         NodeCount++;
                     }
diff --git a/drivers/usb/usbaudio/pin.c b/drivers/usb/usbaudio/pin.c
index a9a7814cf77..350b61375bc 100644
--- a/drivers/usb/usbaudio/pin.c
+++ b/drivers/usb/usbaudio/pin.c
@@ -697,7 +697,7 @@ InitStreamPin(
 ULONG
 GetDataRangeIndexForFormat(
     IN PKSDATARANGE ConnectionFormat,
-    IN PKSDATARANGE * DataRanges,
+    IN const PKSDATARANGE * DataRanges,
     IN ULONG DataRangesCount)
 {
     ULONG Index;