Andrew Nguyen : comdlg32: Avoid a NULL dereference when changing the file type selection of a Unicode Win3 .1-style dialog.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 10356abd8ae768357209b5dcee20933ec398e8d7
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=10356abd8ae768357209b5dcee20933ec398e8d7

Author: Andrew Nguyen <anguyen at codeweavers.com>
Date:   Fri Jul 30 07:43:24 2010 -0500

comdlg32: Avoid a NULL dereference when changing the file type selection of a Unicode Win3.1-style dialog.

---

 dlls/comdlg32/filedlg31.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/dlls/comdlg32/filedlg31.c b/dlls/comdlg32/filedlg31.c
index fd2ef36..89ef0e3 100644
--- a/dlls/comdlg32/filedlg31.c
+++ b/dlls/comdlg32/filedlg31.c
@@ -630,7 +630,8 @@ static LRESULT FD31_FileTypeChange( const FD31_DATA *lfs )
     if (lRet == LB_ERR)
         return TRUE;
     lfs->ofnW->nFilterIndex = lRet + 1;
-    lfs->ofnA->nFilterIndex = lRet + 1;
+    if (lfs->ofnA)
+        lfs->ofnA->nFilterIndex = lRet + 1;
     pstr = (LPWSTR)SendDlgItemMessageW(lfs->hwnd, cmb1, CB_GETITEMDATA, lRet, 0);
     TRACE("Selected filter : %s\n", debugstr_w(pstr));