Hans Leidekker : msi: Avoid a crash in msi_dialog_handle_event.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 8df6708af44bdd4850cda3b1533c614bc586c1ce
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=8df6708af44bdd4850cda3b1533c614bc586c1ce

Author: Hans Leidekker <hans at codeweavers.com>
Date:   Wed Jan 30 16:27:54 2013 +0100

msi: Avoid a crash in msi_dialog_handle_event.

---

 dlls/msi/dialog.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/dlls/msi/dialog.c b/dlls/msi/dialog.c
index 4d8564d..1e0e23e 100644
--- a/dlls/msi/dialog.c
+++ b/dlls/msi/dialog.c
@@ -692,7 +692,7 @@ void msi_dialog_handle_event( msi_dialog* dialog, LPCWSTR control,
     else if ( !strcmpW( attribute, szProperty ) )
     {
         MSIFEATURE *feature = msi_seltree_get_selected_feature( ctrl );
-        msi_dialog_set_property( dialog->package, ctrl->property, feature->Directory );
+        if (feature) msi_dialog_set_property( dialog->package, ctrl->property, feature->Directory );
     }
     else if ( !strcmpW( attribute, szSelectionPath ) )
     {