diff --git a/reactos/drivers/wdm/audio/backpln/portcls/api.cpp b/reactos/drivers/wdm/audio/backpln/portcls/api.cpp
index e890e751334..1c0fca303d8 100644
--- a/reactos/drivers/wdm/audio/backpln/portcls/api.cpp
+++ b/reactos/drivers/wdm/audio/backpln/portcls/api.cpp
@@ -108,7 +108,7 @@ PcRegisterIoTimeout(
         {
             bFound = TRUE;
             Status = STATUS_UNSUCCESSFUL;
-            ExFreePool(TimerContext);
+            FreeItem(TimerContext, TAG_PORTCLASS);
             break;
         }
         ListEntry = ListEntry->Flink;
@@ -161,7 +161,7 @@ PcUnregisterIoTimeout(
         {
             bFound = TRUE;
             RemoveEntryList(&CurContext->Entry);
-            ExFreePool(CurContext);
+            FreeItem(CurContext, TAG_PORTCLASS);
             break;
         }
         ListEntry = ListEntry->Flink;
@@ -196,7 +196,7 @@ PcCompletePendingPropertyRequest(
     IoCompleteRequest(PropertyRequest->Irp, IO_SOUND_INCREMENT);
 
     // free the property request
-    ExFreePool(PropertyRequest);
+    FreeItem(PropertyRequest, TAG_PORTCLASS);
 
     // return success
     return STATUS_SUCCESS;
diff --git a/reactos/drivers/wdm/audio/backpln/portcls/interrupt.cpp b/reactos/drivers/wdm/audio/backpln/portcls/interrupt.cpp
index a0c78ad9f21..af4b0c18cdf 100644
--- a/reactos/drivers/wdm/audio/backpln/portcls/interrupt.cpp
+++ b/reactos/drivers/wdm/audio/backpln/portcls/interrupt.cpp
@@ -234,7 +234,7 @@ CInterruptSync::Connect()
 
     DPRINT("Vector %u Level %u Flags %x Affinity %x\n", Descriptor->u.Interrupt.Vector, Descriptor->u.Interrupt.Level, Descriptor->Flags, Descriptor->u.Interrupt.Affinity);
 
-    Status = IoConnectInterrupt(&m_Interrupt, 
+    Status = IoConnectInterrupt(&m_Interrupt,
                                 IInterruptServiceRoutine,
                                 (PVOID)this,
                                 &m_Lock,
diff --git a/reactos/drivers/wdm/audio/backpln/portcls/pin_dmus.cpp b/reactos/drivers/wdm/audio/backpln/portcls/pin_dmus.cpp
index 991e0e11426..4bcad8c49d0 100644
--- a/reactos/drivers/wdm/audio/backpln/portcls/pin_dmus.cpp
+++ b/reactos/drivers/wdm/audio/backpln/portcls/pin_dmus.cpp
@@ -427,7 +427,7 @@ CPortPinDMus::Close(
 
     if (m_Format)
     {
-        ExFreePool(m_Format);
+        FreeItem(m_Format, TAG_PORTCLASS);
         m_Format = NULL;
     }
 
diff --git a/reactos/drivers/wdm/audio/backpln/portcls/pin_wavecyclic.cpp b/reactos/drivers/wdm/audio/backpln/portcls/pin_wavecyclic.cpp
index 4da90868a70..003b9b339cd 100644
--- a/reactos/drivers/wdm/audio/backpln/portcls/pin_wavecyclic.cpp
+++ b/reactos/drivers/wdm/audio/backpln/portcls/pin_wavecyclic.cpp
@@ -959,7 +959,7 @@ CPortPinWaveCyclic::Close(
     if (m_Format)
     {
         // free format
-        ExFreePool(m_Format);
+        FreeItem(m_Format, TAG_PORTCLASS);
         m_Format = NULL;
     }
 
diff --git a/reactos/drivers/wdm/audio/backpln/portcls/pin_wavepci.cpp b/reactos/drivers/wdm/audio/backpln/portcls/pin_wavepci.cpp
index 1b44fe1794f..69985c59d42 100644
--- a/reactos/drivers/wdm/audio/backpln/portcls/pin_wavepci.cpp
+++ b/reactos/drivers/wdm/audio/backpln/portcls/pin_wavepci.cpp
@@ -668,7 +668,7 @@ CPortPinWavePci::Close(
 
     if (m_Format)
     {
-        ExFreePool(m_Format);
+        FreeItem(m_Format, TAG_PORTCLASS);
         m_Format = NULL;
     }
 
diff --git a/reactos/drivers/wdm/audio/backpln/portcls/pin_wavert.cpp b/reactos/drivers/wdm/audio/backpln/portcls/pin_wavert.cpp
index 0aa281d0032..7c3d0367123 100644
--- a/reactos/drivers/wdm/audio/backpln/portcls/pin_wavert.cpp
+++ b/reactos/drivers/wdm/audio/backpln/portcls/pin_wavert.cpp
@@ -226,7 +226,7 @@ CPortPinWaveRT::HandleKsProperty(
                     if (NT_SUCCESS(Status))
                     {
                         if (m_Format)
-                            ExFreePoolWithTag(m_Format, TAG_PORTCLASS);
+                            FreeItem(m_Format, TAG_PORTCLASS);
 
                         m_Format = NewDataFormat;
                         Irp->IoStatus.Information = DataFormat->FormatSize;
@@ -400,7 +400,7 @@ CloseStreamRoutine(
 
     if (This->m_Format)
     {
-        ExFreePool(This->m_Format);
+        FreeItem(This->m_Format, TAG_PORTCLASS);
         This->m_Format = NULL;
     }