[PATCH v4 4/6] msvcrt: fix error handling for _mbscmp_l

[Bartosz Kosiorek]

From: Bartosz Kosiorek

---
 dlls/msvcrt/mbcs.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/dlls/msvcrt/mbcs.c b/dlls/msvcrt/mbcs.c
index 20a81e83667..f9973baa982 100644
--- a/dlls/msvcrt/mbcs.c
+++ b/dlls/msvcrt/mbcs.c
@@ -982,7 +982,8 @@ int CDECL _mbscmp_l(const unsigned char* str, const unsigned char* cmp, _locale_
 {
   pthreadmbcinfo mbcinfo;

-  if (!str || !cmp) return INT_MAX;
+  if (!MSVCRT_CHECK_PMT(str && cmp))
+    return _NLSCMPERROR;

mbcinfo = locale ? locale->mbcinfo : get_mbcinfo();