1 files changed, 8 insertions, 8 deletions
diff --git a/MdePkg/Library/PeiIoLibCpuIo/IoLibMmioBuffer.c b/MdePkg/Library/PeiIoLibCpuIo/IoLibMmioBuffer.c
index 133f5c2a2a..bc81ca2243 100644
--- a/MdePkg/Library/PeiIoLibCpuIo/IoLibMmioBuffer.c
+++ b/MdePkg/Library/PeiIoLibCpuIo/IoLibMmioBuffer.c
@@ -53,7 +53,7 @@ MmioReadBuffer8 (
  
   ReturnBuffer = Buffer;
   
-  while (Length--) {
+  while (Length-- != 0) {
     *(Buffer++) = MmioRead8 (StartAddress++);
   }
 
@@ -102,7 +102,7 @@ MmioReadBuffer16 (
  
   ReturnBuffer = Buffer;
   
-  while (Length) {
+  while (Length != 0) {
     *(Buffer++) = MmioRead16 (StartAddress);
     StartAddress += sizeof (UINT16);
     Length -= sizeof (UINT16);
@@ -153,7 +153,7 @@ MmioReadBuffer32 (
  
   ReturnBuffer = Buffer;
   
-  while (Length) {
+  while (Length != 0) {
     *(Buffer++) = MmioRead32 (StartAddress);
     StartAddress += sizeof (UINT32);
     Length -= sizeof (UINT32);
@@ -204,7 +204,7 @@ MmioReadBuffer64 (
  
   ReturnBuffer = Buffer;
   
-  while (Length) {
+  while (Length != 0) {
     *(Buffer++) = MmioRead64 (StartAddress);
     StartAddress += sizeof (UINT64);
     Length -= sizeof (UINT64);
@@ -247,7 +247,7 @@ MmioWriteBuffer8 (
  
   ReturnBuffer = (UINT8 *) Buffer;
   
-  while (Length--) {
+  while (Length-- != 0) {
      MmioWrite8 (StartAddress++, *(Buffer++));
   }
 
@@ -298,7 +298,7 @@ MmioWriteBuffer16 (
 
   ReturnBuffer = (UINT16 *) Buffer;
   
-  while (Length) {
+  while (Length != 0) {
     MmioWrite16 (StartAddress, *(Buffer++));
     
     StartAddress += sizeof (UINT16);
@@ -352,7 +352,7 @@ MmioWriteBuffer32 (
 
   ReturnBuffer = (UINT32 *) Buffer;
   
-  while (Length) {
+  while (Length != 0) {
     MmioWrite32 (StartAddress, *(Buffer++));
     
     StartAddress += sizeof (UINT32);
@@ -405,7 +405,7 @@ MmioWriteBuffer64 (
 
   ReturnBuffer = (UINT64 *) Buffer;
   
-  while (Length) {
+  while (Length != 0) {
     MmioWrite64 (StartAddress, *(Buffer++));
     
     StartAddress += sizeof (UINT64);