summaryrefslogtreecommitdiffstats
path: root/MdeModulePkg/Bus/Pci
diff options
context:
space:
mode:
authorAbner Chang <abner.chang@amd.com>2023-01-11 11:10:08 +0800
committermergify[bot] <37929162+mergify[bot]@users.noreply.github.com>2023-01-16 02:34:53 +0000
commit47ab397011b6d1ce4d5805117dc87d9e35f378db (patch)
tree1d80ed2acf97c25e39b4e045cbd7a8d0251c7555 /MdeModulePkg/Bus/Pci
parentbe8d6ef3856fac2e64e23847a8f05d37822b1f14 (diff)
downloadedk2-47ab397011b6d1ce4d5805117dc87d9e35f378db.tar.gz
edk2-47ab397011b6d1ce4d5805117dc87d9e35f378db.tar.bz2
edk2-47ab397011b6d1ce4d5805117dc87d9e35f378db.zip
MdeModulePkg/XhciPei: Unlinked XhciPei memory block
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>
Diffstat (limited to 'MdeModulePkg/Bus/Pci')
-rw-r--r--MdeModulePkg/Bus/Pci/XhciPei/UsbHcMem.c31
1 files changed, 29 insertions, 2 deletions
diff --git a/MdeModulePkg/Bus/Pci/XhciPei/UsbHcMem.c b/MdeModulePkg/Bus/Pci/XhciPei/UsbHcMem.c
index c64b38fcfc..e779a31138 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
@@ -366,6 +367,32 @@ UsbHcInitMemPool (
}
/**
+ 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.
@param Pool The USB memory pool to free.
@@ -386,7 +413,7 @@ UsbHcFreeMemPool (
// first block.
//
for (Block = Pool->Head->Next; Block != NULL; Block = Pool->Head->Next) {
- // UsbHcUnlinkMemBlock (Pool->Head, Block);
+ UsbHcUnlinkMemBlock (Pool->Head, Block);
UsbHcFreeMemBlock (Pool, Block);
}
@@ -532,7 +559,7 @@ UsbHcFreeMem (
// Release the current memory block if it is empty and not the head
//
if ((Block != Head) && UsbHcIsMemBlockEmpty (Block)) {
- // UsbHcUnlinkMemBlock (Head, Block);
+ UsbHcUnlinkMemBlock (Head, Block);
UsbHcFreeMemBlock (Pool, Block);
}
}