4 files changed, 11 insertions, 5 deletions
diff --git a/MdePkg/Library/PeiIoLibCpuIo/IoLib.c b/MdePkg/Library/PeiIoLibCpuIo/IoLib.c
index 57d84cfd5c..c9260ab9c5 100644
--- a/MdePkg/Library/PeiIoLibCpuIo/IoLib.c
+++ b/MdePkg/Library/PeiIoLibCpuIo/IoLib.c
@@ -337,6 +337,8 @@ MmioRead8 (
 
   @param  Address The MMIO register to write.
   @param  Value   The value to write to the MMIO register.
+  
+  @return Value.
 
 **/
 UINT8
@@ -404,6 +406,8 @@ MmioRead16 (
 
   @param  Address The MMIO register to write.
   @param  Value   The value to write to the MMIO register.
+  
+  @return Value.
 
 **/
 UINT16
@@ -474,6 +478,8 @@ MmioRead32 (
 
   @param  Address The MMIO register to write.
   @param  Value   The value to write to the MMIO register.
+  
+  @return Value.
 
 **/
 UINT32
diff --git a/MdePkg/Library/PeiServicesTablePointerLibKr7/PeiServicesTablePointer.c b/MdePkg/Library/PeiServicesTablePointerLibKr7/PeiServicesTablePointer.c
index ebfec4be6c..d6927999cc 100644
--- a/MdePkg/Library/PeiServicesTablePointerLibKr7/PeiServicesTablePointer.c
+++ b/MdePkg/Library/PeiServicesTablePointerLibKr7/PeiServicesTablePointer.c
@@ -18,10 +18,10 @@
 #include <Library/DebugLib.h>
 
 /**
-  The function returns the pointer to PeiServices.
+  The function returns the pointer to PEI services.
 
-  The function returns the pointer to PeiServices.
-  It will ASSERT() if the pointer to PeiServices is NULL.
+  The function returns the pointer to PEI services.
+  It will ASSERT() if the pointer to PEI services is NULL.
 
   @return  The pointer to PeiServices.
 
diff --git a/MdePkg/Library/UefiDebugLibConOut/DebugLib.c b/MdePkg/Library/UefiDebugLibConOut/DebugLib.c
index f416bcb3c0..be98b52731 100644
--- a/MdePkg/Library/UefiDebugLibConOut/DebugLib.c
+++ b/MdePkg/Library/UefiDebugLibConOut/DebugLib.c
@@ -149,7 +149,7 @@ DebugAssert (
   PcdDebugClearMemoryValue, and returns Buffer.
 
   If Buffer is NULL, then ASSERT().
-  If Length is greater than (MAX_ADDRESS -Buffer + 1), then ASSERT(). 
+  If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT(). 
 
   @param   Buffer  Pointer to the target buffer to be filled with PcdDebugClearMemoryValue.
   @param   Length  Number of bytes in Buffer to fill with zeros PcdDebugClearMemoryValue. 
diff --git a/MdePkg/Library/UefiDebugLibStdErr/DebugLib.c b/MdePkg/Library/UefiDebugLibStdErr/DebugLib.c
index 6d5ae16e73..60b83b0772 100644
--- a/MdePkg/Library/UefiDebugLibStdErr/DebugLib.c
+++ b/MdePkg/Library/UefiDebugLibStdErr/DebugLib.c
@@ -150,7 +150,7 @@ DebugAssert (
   PcdDebugClearMemoryValue, and returns Buffer.
 
   If Buffer is NULL, then ASSERT().
-  If Length is greater than (MAX_ADDRESS -Buffer + 1), then ASSERT(). 
+  If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT(). 
 
   @param   Buffer  Pointer to the target buffer to be filled with PcdDebugClearMemoryValue.
   @param   Length  Number of bytes in Buffer to fill with zeros PcdDebugClearMemoryValue.