cid#1473974 silence Explicit null dereferenced

Change-Id: Id9e381c3919dac989a5957beddd0c070d38ad47d
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/112870
Tested-by: Caolán McNamara <caolanm@redhat.com>
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
diff --git a/stoc/source/typeconv/convert.cxx b/stoc/source/typeconv/convert.cxx
index e8fe658..2f87b4f4 100644
--- a/stoc/source/typeconv/convert.cxx
+++ b/stoc/source/typeconv/convert.cxx
@@ -495,6 +495,7 @@ Any SAL_CALL TypeConverter_Impl::convertTo( const Any& rVal, const Type& aDestTy
        {
            // void -> interface (null)
            void * null_ref = nullptr;
            // coverity[var_deref_model : FALSE] - null_ref will not be derefed in this case
            aRet.setValue( &null_ref, aDestType );
            break;
        }