Use Block->Next instead of Pool->Head->Next, otherwise the for loop
will be not able to come out.
It will also match with the UsbHcFreeMemPool() in EhciPei.

Cc: Hao A Wu <hao.a...@intel.com>
Cc: Ray Ni <ray...@intel.com>
Cc: Zhikai Sun <zhikai....@intel.com>
Signed-off-by: Star Zeng <star.z...@intel.com>
---
 MdeModulePkg/Bus/Pci/XhciPei/UsbHcMem.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/MdeModulePkg/Bus/Pci/XhciPei/UsbHcMem.c 
b/MdeModulePkg/Bus/Pci/XhciPei/UsbHcMem.c
index c64b38fcfc89..148425ae844e 100644
--- a/MdeModulePkg/Bus/Pci/XhciPei/UsbHcMem.c
+++ b/MdeModulePkg/Bus/Pci/XhciPei/UsbHcMem.c
@@ -385,7 +385,7 @@ UsbHcFreeMemPool (
   // UsbHcUnlinkMemBlock can't be used to unlink and free the
   // first block.
   //
-  for (Block = Pool->Head->Next; Block != NULL; Block = Pool->Head->Next) {
+  for (Block = Pool->Head->Next; Block != NULL; Block = Block->Next) {
     // UsbHcUnlinkMemBlock (Pool->Head, Block);
     UsbHcFreeMemBlock (Pool, Block);
   }
-- 
2.33.1.windows.1



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