diff --git a/MdeModulePkg/Library/DxeCoreMemoryAllocationLib/MemoryAllocationLib.c b/MdeModulePkg/Library/DxeCoreMemoryAllocationLib/MemoryAllocationLib.c
index 10a011e446..7f15ec0be9 100644
--- a/MdeModulePkg/Library/DxeCoreMemoryAllocationLib/MemoryAllocationLib.c
+++ b/MdeModulePkg/Library/DxeCoreMemoryAllocationLib/MemoryAllocationLib.c
@@ -702,7 +702,6 @@ InternalReallocatePool (
   If NewSize is 0, then a valid buffer of 0 size is  returned.  If there is not 
   enough memory remaining to satisfy the request, then NULL is returned.
   
-  If OldBuffer is NULL, then ASSERT().
   If NewSize is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT(). 
   If OldSize is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT(). 
 
@@ -735,7 +734,6 @@ ReallocatePool (
   If NewSize is 0, then a valid buffer of 0 size is  returned.  If there is not 
   enough memory remaining to satisfy the request, then NULL is returned.
 
-  If OldBuffer is NULL, then ASSERT().
   If NewSize is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT(). 
   If OldSize is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT(). 
 
@@ -767,8 +765,7 @@ ReallocateRuntimePool (
   OldBuffer is freed.  A pointer to the newly allocated buffer is returned.  
   If NewSize is 0, then a valid buffer of 0 size is  returned.  If there is not 
   enough memory remaining to satisfy the request, then NULL is returned.
-  
-  If OldBuffer is NULL, then ASSERT().
+
   If NewSize is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT(). 
   If OldSize is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().