[5.15,0/1] rcutorture: Add missing return and use __func__ in warning

Message

Daniil Dulov Feb. 27, 2024, 10:22 a.m. UTC

Svacer reports a potential division by zero at rcu_torture_writer() in
5.15 stable release. The problem has been fixed by the following patch
that can be cleanly applied to 5.15 branch.