Prevent listview from crashing when a null sort function is passed to

LVM_SORTITEMS.

Prevent listview from crashing when a null sort function is passed to
a3a19355 · Mike McCormack · Alexandre Julliard · 101599e9 · a3a19355
Commit a3a19355 authored Aug 12, 2004 by Mike McCormack Committed by Alexandre Julliard Aug 12, 2004
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listview.c dlls/comctl32/listview.c +1 -0

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--- a/dlls/comctl32/listview.c
+++ b/dlls/comctl32/listview.c
@@ -7272,6 +7272,7 @@ static BOOL LISTVIEW_SortItems(LISTVIEW_INFO *infoPtr, PFNLVCOMPARE pfnCompare, 

    if (infoPtr->dwStyle & LVS_OWNERDATA) return FALSE;

+    if (!pfnCompare) return FALSE;
    if (!infoPtr->hdpaItems) return FALSE;

    /* if there are 0 or 1 items, there is no need to sort */