Elias Benali : winhelp: Check against a NULL pointer dereference.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 38daafb77e8c0e507926d3c2749f20bc0065d1e6
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=38daafb77e8c0e507926d3c2749f20bc0065d1e6

Author: Elias Benali <elptr at users.sourceforge.net>
Date:   Tue Apr 29 11:19:33 2008 -0400

winhelp: Check against a NULL pointer dereference.

---

 programs/winhelp/winhelp.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/programs/winhelp/winhelp.c b/programs/winhelp/winhelp.c
index 62eb98f..2577a83 100644
--- a/programs/winhelp/winhelp.c
+++ b/programs/winhelp/winhelp.c
@@ -579,7 +579,7 @@ BOOL WINHELP_CreateHelpWindow(WINHELP_WNDPAGE* wpage, int nCmdShow, BOOL remembe
                 }
                 SetWindowPos(win->hMainWnd, HWND_TOP, pt.x, pt.y, sz.cx, sz.cy, flags);
 
-                if (wpage->page && wpage->page->file != win->page->file)
+                if (wpage->page && win->page && wpage->page->file != win->page->file)
                     WINHELP_DeleteBackSet(win);
                 WINHELP_InitFonts(win->hMainWnd);