Michael Mc Donnell : shell32: Set pointer to NULL after free to avoid double free.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 26f3c14d6b95e42b47b2e153be3b6a26d64b87ed
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=26f3c14d6b95e42b47b2e153be3b6a26d64b87ed

Author: Michael Mc Donnell <michael at mcdonnell.dk>
Date:   Wed Oct 19 15:11:32 2011 -0400

shell32: Set pointer to NULL after free to avoid double free.

---

 dlls/shell32/shfldr_unixfs.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/dlls/shell32/shfldr_unixfs.c b/dlls/shell32/shfldr_unixfs.c
index 9649df8..606fa84 100644
--- a/dlls/shell32/shfldr_unixfs.c
+++ b/dlls/shell32/shfldr_unixfs.c
@@ -2440,6 +2440,7 @@ static HRESULT WINAPI UnixSubFolderIterator_IEnumIDList_Next(IEnumIDList* iface,
                 !UNIXFS_is_pidl_of_type(rgelt[i], This->m_fFilter)) 
             {
                 SHFree(rgelt[i]);
+                rgelt[i] = NULL;
                 continue;
             }
             memset(((PBYTE)rgelt[i])+rgelt[i]->mkid.cb, 0, sizeof(USHORT));