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MdeModulePkg/XhciPei: Unlinked XhciPei memory block

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Unlink the XhciPei memory block when it has been freed.

Signed-off-by: Jiangang He <jiangang.he@amd.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Garrett Kirkendall <garrett.kirkendall@amd.com>
Cc: Abner Chang <abner.chang@amd.com>
Cc: Kuei-Hung Lin <Kuei-Hung.Lin@amd.com>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
This commit is contained in:
Abner Chang 2023-01-11 11:10:08 +08:00 committed by mergify[bot]
parent be8d6ef385
commit 47ab397011
1 changed files with 29 additions and 2 deletions
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31
MdeModulePkg/Bus/Pci/XhciPei/UsbHcMem.c
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@ -3,6 +3,7 @@ PEIM to produce gPeiUsb2HostControllerPpiGuid based on gPeiUsbControllerPpiGuid
which is used to enable recovery function from USB Drivers. which is used to enable recovery function from USB Drivers.
Copyright (c) 2014 - 2016, Intel Corporation. All rights reserved.<BR> 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 SPDX-License-Identifier: BSD-2-Clause-Patent
@ -365,6 +366,32 @@ UsbHcInitMemPool (
return Pool; 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. Release the memory management pool.
@ -386,7 +413,7 @@ UsbHcFreeMemPool (
// first block. // first block.
// //
for (Block = Pool->Head->Next; Block != NULL; Block = Pool->Head->Next) { for (Block = Pool->Head->Next; Block != NULL; Block = Pool->Head->Next) {
// UsbHcUnlinkMemBlock (Pool->Head, Block); UsbHcUnlinkMemBlock (Pool->Head, Block);
UsbHcFreeMemBlock (Pool, Block); UsbHcFreeMemBlock (Pool, Block);
} }
@ -532,7 +559,7 @@ UsbHcFreeMem (
// Release the current memory block if it is empty and not the head // Release the current memory block if it is empty and not the head
// //
if ((Block != Head) && UsbHcIsMemBlockEmpty (Block)) { if ((Block != Head) && UsbHcIsMemBlockEmpty (Block)) {
// UsbHcUnlinkMemBlock (Head, Block); UsbHcUnlinkMemBlock (Head, Block);
UsbHcFreeMemBlock (Pool, Block); UsbHcFreeMemBlock (Pool, Block);
} }
} }