Re: [PATCH v2] ftrace: avoid potential division by zero
From: Justin Capella
Date: Fri Jan 03 2020 - 03:00:38 EST
> - do_div(stddev, rec->counter * (rec->counter - 1) * 1000);
>
> + stddev = div64_ul(stddev,
> + rec->counter * (rec->counter - 1) * 1000);
Is a rec->counter > 1 assertion needed here?