diff options
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/sched/fair.c | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index fc4e2529fbd2..cbd6d12e91fe 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -5442,15 +5442,7 @@ static int sched_group_energy(struct energy_env *eenv) */ sd = rcu_dereference(per_cpu(sd_scs, cpu)); - if (!sd) - /* - * We most probably raced with hotplug; returning a - * wrong energy estimation is better than entering an - * infinite loop. - */ - return -EINVAL; - - if (sd->parent) + if (sd && sd->parent) sg_shared_cap = sd->parent->groups; for_each_domain(cpu, sd) { @@ -5505,6 +5497,14 @@ static int sched_group_energy(struct energy_env *eenv) } while (sg = sg->next, sg != sd->groups); } + + /* + * If we raced with hotplug and got an sd NULL-pointer; + * returning a wrong energy estimation is better than + * entering an infinite loop. + */ + if (cpumask_test_cpu(cpu, &visit_cpus)) + return -EINVAL; next_cpu: cpumask_clear_cpu(cpu, &visit_cpus); continue; |