Qt: fix a crash ( #342332 on ubuntu)

diff --git a/modules/gui/qt4/components/playlist/playlist_model.cpp b/modules/gui/qt4/components/playlist/playlist_model.cpp
index c5de69acb060e5257c5d8059cb4406388ab99a33..a474abd94e7abb35f90f535360bce286bce7afcd 100644 (file)
--- a/modules/gui/qt4/components/playlist/playlist_model.cpp
+++ b/modules/gui/qt4/components/playlist/playlist_model.cpp
@@ -751,7 +751,7 @@ next:
     {
         playlist_item_t *p_root = playlist_ItemGetById( p_playlist,
                                                         rootItem->i_id );
-        if( p_root )
+        if( p_root && i_flag )
         {
             playlist_RecursiveNodeSort( p_playlist, p_root,
                                         i_column_sorting( i_flag ),