Update Width check for < 0.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9754 6f19259b-4bc3-4df7-8a09-765794883524
2010-01-14 18:14:39 +00:00
parent 149fb6d680
commit dbc225ca51
2 changed files with 2 additions and 3 deletions
--- a/UefiCpuPkg/CpuIo2Smm/CpuIo2Smm.c
+++ b/UefiCpuPkg/CpuIo2Smm/CpuIo2Smm.c
@@ -135,7 +135,7 @@ CpuIoCheckParameter (
  //
  // Check to see if Width is in the valid range
  //
-  if (Width > SMM_IO_UINT64) {
+  if (Width < 0 || Width > SMM_IO_UINT64) {
    return EFI_INVALID_PARAMETER;
  }