From e90954304d09bc71dd9354e5714bbc8e5a3f3a2e Mon Sep 17 00:00:00 2001
From: Katayama Hirofumi MZ <katayama.hirofumi.mz@gmail.com>
Date: Thu, 6 Dec 2018 12:47:02 +0900
Subject: [PATCH] [WIN32SS][FONT] Add some assertions (#1098)

---
 win32ss/gdi/ntgdi/font.c     | 6 +++++-
 win32ss/gdi/ntgdi/freetype.c | 1 +
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/win32ss/gdi/ntgdi/font.c b/win32ss/gdi/ntgdi/font.c
index ecf16c6baf5..d106e57ac0d 100644
--- a/win32ss/gdi/ntgdi/font.c
+++ b/win32ss/gdi/ntgdi/font.c
@@ -293,7 +293,10 @@ FASTCALL
 FontGetObject(PTEXTOBJ plfont, ULONG cjBuffer, PVOID pvBuffer)
 {
     ULONG cjMaxSize;
-    ENUMLOGFONTEXDVW *plf = &plfont->logfont;
+    ENUMLOGFONTEXDVW *plf;
+
+    ASSERT(plfont);
+    plf = &plfont->logfont;
 
     if (!(plfont->fl & TEXTOBJECT_INIT))
     {
@@ -1081,6 +1084,7 @@ NtGdiGetRealizationInfo(
   }
   pdcattr = pDc->pdcattr;
   pTextObj = RealizeFontInit(pdcattr->hlfntNew);
+  ASSERT(pTextObj != NULL);
   pFontGdi = ObjToGDI(pTextObj->Font, FONT);
   TEXTOBJ_UnlockText(pTextObj);
   DC_UnlockDc(pDc);
diff --git a/win32ss/gdi/ntgdi/freetype.c b/win32ss/gdi/ntgdi/freetype.c
index d6aafb56796..fb823d48d12 100644
--- a/win32ss/gdi/ntgdi/freetype.c
+++ b/win32ss/gdi/ntgdi/freetype.c
@@ -1631,6 +1631,7 @@ TextIntCreateFontIndirect(CONST LPLOGFONTW lf, HFONT *NewFont)
     PLFONT plfont;
     LOGFONTW *plf;
 
+    ASSERT(lf);
     plfont = LFONT_AllocFontWithHandle();
     if (!plfont)
     {