From: Abner Chang <abner.ch...@amd.com>
In V2: Add AMD copyright.
Unlink the XhciPei memory block when it has been freed.
Signed-off-by: Kuei-Hung Lin <kuei-hung....@amd.com>
Cc: Hao A Wu <hao.a...@intel.com>
Cc: Ray Ni <ray...@intel.com>
Cc: Garrett Kirkendall <garrett.kirkend...@amd.com>
Cc: Abner Chang <abner.ch...@amd.com>
---
MdeModulePkg/Bus/Pci/XhciPei/UsbHcMem.c | 29 ++++++++++++++++++++++++-
1 file changed, 28 insertions(+), 1 deletion(-)
diff --git a/MdeModulePkg/Bus/Pci/XhciPei/UsbHcMem.c
b/MdeModulePkg/Bus/Pci/XhciPei/UsbHcMem.c
index c64b38fcfc8..39ba31b0913 100644
--- a/MdeModulePkg/Bus/Pci/XhciPei/UsbHcMem.c
+++ b/MdeModulePkg/Bus/Pci/XhciPei/UsbHcMem.c
@@ -3,6 +3,7 @@ PEIM to produce gPeiUsb2HostControllerPpiGuid based on
gPeiUsbControllerPpiGuid
which is used to enable recovery function from USB Drivers.
Copyright (c) 2014 - 2016, Intel Corporation. All rights reserved.<BR>
+Copyright (C) 2022 Advanced Micro Devices, Inc. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
@@ -365,6 +366,32 @@ UsbHcInitMemPool (
return Pool;
}
+/**
+ Unlink the memory block from the pool's list.
+
+ @param Head The block list head of the memory's pool.
+ @param BlockToUnlink The memory block to unlink.
+
+**/
+VOID
+UsbHcUnlinkMemBlock (
+ IN USBHC_MEM_BLOCK *Head,
+ IN USBHC_MEM_BLOCK *BlockToUnlink
+ )
+{
+ USBHC_MEM_BLOCK *Block;
+
+ ASSERT ((Head != NULL) && (BlockToUnlink != NULL));
+
+ for (Block = Head; Block != NULL; Block = Block->Next) {
+ if (Block->Next == BlockToUnlink) {
+ Block->Next = BlockToUnlink->Next;
+ BlockToUnlink->Next = NULL;
+ break;
+ }
+ }
+}
+
/**
Release the memory management pool.
@@ -386,8 +413,8 @@ UsbHcFreeMemPool (
// first block.
//
for (Block = Pool->Head->Next; Block != NULL; Block = Pool->Head->Next) {
- // UsbHcUnlinkMemBlock (Pool->Head, Block);
UsbHcFreeMemBlock (Pool, Block);
+ UsbHcUnlinkMemBlock (Pool->Head, Block);
}
UsbHcFreeMemBlock (Pool, Pool->Head);
--
2.37.1.windows.1
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