X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=blobdiff_plain;f=IntelFrameworkPkg%2FLibrary%2FDxeIoLibCpuIo%2FIoLibMmioBuffer.c;fp=IntelFrameworkPkg%2FLibrary%2FDxeIoLibCpuIo%2FIoLibMmioBuffer.c;h=f43db07fe6e3036b5b5c5431e5892076f4c352eb;hp=1a39f212884454ca4e3b7c081cf32081c5d81f80;hb=4ebb0d9eb125fe6ba7d58fc547a32f514d8b9546;hpb=9fd4915febf59e2767e71a748d94c25246a744c6

diff --git a/IntelFrameworkPkg/Library/DxeIoLibCpuIo/IoLibMmioBuffer.c b/IntelFrameworkPkg/Library/DxeIoLibCpuIo/IoLibMmioBuffer.c
index 1a39f21288..f43db07fe6 100644
--- a/IntelFrameworkPkg/Library/DxeIoLibCpuIo/IoLibMmioBuffer.c
+++ b/IntelFrameworkPkg/Library/DxeIoLibCpuIo/IoLibMmioBuffer.c
@@ -48,7 +48,7 @@ MmioReadBuffer8 (
 
   ReturnBuffer = Buffer;
 
-  while (Length--) {
+  while (Length-- > 0) {
     *(Buffer++) = MmioRead8 (StartAddress++);
   }
 
@@ -97,7 +97,7 @@ MmioReadBuffer16 (
 
   ReturnBuffer = Buffer;
 
-  while (Length) {
+  while (Length > 0) {
     *(Buffer++) = MmioRead16 (StartAddress);
     StartAddress += sizeof (UINT16);
     Length -= sizeof (UINT16);
@@ -148,7 +148,7 @@ MmioReadBuffer32 (
 
   ReturnBuffer = Buffer;
 
-  while (Length) {
+  while (Length > 0) {
     *(Buffer++) = MmioRead32 (StartAddress);
     StartAddress += sizeof (UINT32);
     Length -= sizeof (UINT32);
@@ -199,7 +199,7 @@ MmioReadBuffer64 (
 
   ReturnBuffer = Buffer;
 
-  while (Length) {
+  while (Length > 0) {
     *(Buffer++) = MmioRead64 (StartAddress);
     StartAddress += sizeof (UINT64);
     Length -= sizeof (UINT64);
@@ -242,7 +242,7 @@ MmioWriteBuffer8 (
 
   ReturnBuffer = (UINT8 *) Buffer;
 
-  while (Length--) {
+  while (Length-- > 0) {
      MmioWrite8 (StartAddress++, *(Buffer++));
   }
 
@@ -293,7 +293,7 @@ MmioWriteBuffer16 (
 
   ReturnBuffer = (UINT16 *) Buffer;
 
-  while (Length) {
+  while (Length > 0) {
     MmioWrite16 (StartAddress, *(Buffer++));
 
     StartAddress += sizeof (UINT16);
@@ -347,7 +347,7 @@ MmioWriteBuffer32 (
 
   ReturnBuffer = (UINT32 *) Buffer;
 
-  while (Length) {
+  while (Length > 0) {
     MmioWrite32 (StartAddress, *(Buffer++));
 
     StartAddress += sizeof (UINT32);
@@ -400,7 +400,7 @@ MmioWriteBuffer64 (
 
   ReturnBuffer = (UINT64 *) Buffer;
 
-  while (Length) {
+  while (Length > 0) {
     MmioWrite64 (StartAddress, *(Buffer++));
 
     StartAddress += sizeof (UINT64);