Paul Vriens : comctl32/header: Check Null before accessing struct member.

[Alexandre Julliard]

Module: wine
Branch: refs/heads/master
Commit: ddf0049e9c51581a78ad5ae11c7dd4c47dd11d77
URL:    http://source.winehq.org/git/?p=wine.git;a=commit;h=ddf0049e9c51581a78ad5ae11c7dd4c47dd11d77

Author: Paul Vriens <Paul.Vriens at xs4all.nl>
Date:   Fri Jun  2 10:38:22 2006 +0200

comctl32/header: Check Null before accessing struct member.

---

 dlls/comctl32/header.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/dlls/comctl32/header.c b/dlls/comctl32/header.c
index 493df6f..41c4071 100644
--- a/dlls/comctl32/header.c
+++ b/dlls/comctl32/header.c
@@ -1141,15 +1141,17 @@ HEADER_GetItemT (HWND hwnd, INT nItem, L
 {
     HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
     HEADER_ITEM *lpItem;
-    UINT mask = phdi->mask;
+    UINT mask;
 
     if (!phdi)
 	return FALSE;
 
     TRACE("[nItem=%d]\n", nItem);
 
+    mask = phdi->mask;
     if (mask == 0)
 	return TRUE;
+
     if ((nItem < 0) || (nItem >= (INT)infoPtr->uNumItem))
         return FALSE;