comdlg32: Avoid a NULL dereference when changing the file type selection of a…

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

comdlg32: Avoid a NULL dereference when changing the file type selection of a…
10356abd · Andrew Nguyen · Alexandre Julliard · 4e49518a · 10356abd
Commit 10356abd authored Jul 30, 2010 by Andrew Nguyen Committed by Alexandre Julliard Jul 30, 2010
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filedlg31.c dlls/comdlg32/filedlg31.c +2 -1

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--- 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));