Fix a potential bug that GetLanguages() API may return incorrect languages in a strin...

This issue was hidden since UefiHiiLib API HiiLibGetSupportedLanguages() allocates large enough (4K) buffer to get the supported languages.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@7953 6f19259b-4bc3-4df7-8a09-765794883524

diff --git a/MdeModulePkg/Universal/HiiDatabaseDxe/String.c b/MdeModulePkg/Universal/HiiDatabaseDxe/String.c
index 64148fe1316353422ff357e6ed8dae86ead81c23..c6edd87cfd0f37a4845c76882374e6330c595c42 100644 (file)
--- a/MdeModulePkg/Universal/HiiDatabaseDxe/String.c
+++ b/MdeModulePkg/Universal/HiiDatabaseDxe/String.c
@@ -1536,7 +1536,7 @@ HiiGetLanguages (
       ) {\r
     StringPackage = CR (Link, HII_STRING_PACKAGE_INSTANCE, StringEntry, HII_STRING_PACKAGE_SIGNATURE);\r
     ResultSize += AsciiStrSize (StringPackage->StringPkgHdr->Language);\r
-    if (ResultSize < *LanguagesSize) {\r
+    if (ResultSize <= *LanguagesSize) {\r
       AsciiStrCpy (Languages, StringPackage->StringPkgHdr->Language);\r
       Languages += AsciiStrSize (StringPackage->StringPkgHdr->Language);\r
       *(Languages - 1) = L';';\r