From: hhuan13 <hhuan13@6f19259b-4bc3-4df7-8a09-765794883524>
Date: Thu, 4 Mar 2010 01:48:52 +0000 (+0000)
Subject: Remove Size==0 branch in SmmAllocatePool()
X-Git-Tag: edk2-stable201903~16165
X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=commitdiff_plain;h=1fc17d768f44860bebeba03bf2e996c20c9dd08d

Remove Size==0 branch in SmmAllocatePool()

The background is :

The SmmMemoryAllocationLib of one of the instance of MemoryAllocation library class. As in MdePkg comment for AllocatePool() : “If AllocationSize is 0, then a valid buffer of 0 size is returned.”,the SMM library implements AllocatePool by SMST service SmmAllocatePool which does NOT support the zero size.




git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10171 6f19259b-4bc3-4df7-8a09-765794883524
---

diff --git a/MdeModulePkg/Core/PiSmmCore/Pool.c b/MdeModulePkg/Core/PiSmmCore/Pool.c
index 10a85c47ab..b38a3e0b7e 100644
--- a/MdeModulePkg/Core/PiSmmCore/Pool.c
+++ b/MdeModulePkg/Core/PiSmmCore/Pool.c
@@ -224,11 +224,6 @@ SmmAllocatePool (
     return EFI_INVALID_PARAMETER;
   }
 
-  if (Size == 0) {
-    *Buffer = NULL;
-    return EFI_SUCCESS;
-  }
-
   Size += sizeof (*PoolHdr);
   if (Size > MAX_POOL_SIZE) {
     Size = EFI_SIZE_TO_PAGES (Size);