Related: fdo#81147 check if colorlist is valid

Change-Id: Ifd48526974b7fcb10872d53d42e26add3fe878d1

cui/source/tabpages/tabarea.cxx

@@ -191,7 +191,7 @@ void SvxAreaTabDialog::SavePalettes()
         }
     }
 
-    if( mnColorListState & CT_MODIFIED )
+    if (mnColorListState & CT_MODIFIED && mpColorList.is())
     {
         mpColorList->SetPath( aPath );
         mpColorList->Save();

cui/source/tabpages/tpcolor.cxx

@@ -584,15 +584,13 @@ bool SvxColorTabPage::FillItemSet( SfxItemSet* rSet )
 
 void SvxColorTabPage::UpdateModified()
 {
-    bool bEnable = pColorList->Count();
+    bool bEnable = pColorList.is() && pColorList->Count();
     m_pBtnModify->Enable( bEnable );
     m_pBtnWorkOn->Enable( bEnable );
     m_pBtnDelete->Enable( bEnable );
     EnableSave( bEnable );
 }
 
-
-
 void SvxColorTabPage::Reset( const SfxItemSet* rSet )
 {
     sal_uInt16 nState = rSet->GetItemState( XATTR_FILLCOLOR );