uniform the sw and hw expression to avoid confusing. it does not effect hw function.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10186 6f19259b-4bc3-4df7-8a09-765794883524
2010-03-04 09:29:34 +00:00
parent 029f9e857e
commit 3a2f9cce7d
2 changed files with 8 additions and 3 deletions
--- a/MdeModulePkg/Bus/Pci/EhciDxe/UsbHcMem.c
+++ b/MdeModulePkg/Bus/Pci/EhciDxe/UsbHcMem.c
@@ -246,6 +246,10 @@ UsbHcGetPciAddressForHostMem (
  Head      = Pool->Head;
  AllocSize = USBHC_MEM_ROUND (Size);

+  if (Mem == NULL) {
+    return 0;
+  }
+
  for (Block = Head; Block != NULL; Block = Block->Next) {
    //
    // scan the memory block list for the memory block that