diff --git a/MdeModulePkg/Bus/Pci/UhciDxe/Uhci.c b/MdeModulePkg/Bus/Pci/UhciDxe/Uhci.c
index c57b0c80ca..1ed79023a3 100644
--- a/MdeModulePkg/Bus/Pci/UhciDxe/Uhci.c
+++ b/MdeModulePkg/Bus/Pci/UhciDxe/Uhci.c
@@ -1001,7 +1001,7 @@ Uhci2AsyncInterruptTransfer (
   //
   // Allocate and map source data buffer for bus master access.
   //
-  DataPtr = AllocatePool (DataLength);
+  DataPtr     = UsbHcAllocateMem (Uhc->MemPool, DataLength);
 
   if (DataPtr == NULL) {
     return EFI_OUT_OF_RESOURCES;
diff --git a/MdeModulePkg/Bus/Pci/UhciDxe/UhciSched.c b/MdeModulePkg/Bus/Pci/UhciDxe/UhciSched.c
index f56fa2b4b1..759f7a05cb 100644
--- a/MdeModulePkg/Bus/Pci/UhciDxe/UhciSched.c
+++ b/MdeModulePkg/Bus/Pci/UhciDxe/UhciSched.c
@@ -798,7 +798,7 @@ UhciFreeAsyncReq (
   }
 
   if (AsyncReq->Data != NULL) {
-    gBS->FreePool (AsyncReq->Data);
+    UsbHcFreeMem (Uhc->MemPool, AsyncReq->Data, AsyncReq->DataLen);
   }
 
   gBS->FreePool (AsyncReq);