diff options
Diffstat (limited to 'drivers/perf/arm_smmuv3_pmu.c')
| -rw-r--r-- | drivers/perf/arm_smmuv3_pmu.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/perf/arm_smmuv3_pmu.c b/drivers/perf/arm_smmuv3_pmu.c index afa8efbdad8f..f5a33dbe7acb 100644 --- a/drivers/perf/arm_smmuv3_pmu.c +++ b/drivers/perf/arm_smmuv3_pmu.c @@ -870,6 +870,8 @@ static struct platform_driver smmu_pmu_driver = { static int __init arm_smmu_pmu_init(void) { + int ret; + cpuhp_state_num = cpuhp_setup_state_multi(CPUHP_AP_ONLINE_DYN, "perf/arm/pmcg:online", NULL, @@ -877,7 +879,11 @@ static int __init arm_smmu_pmu_init(void) if (cpuhp_state_num < 0) return cpuhp_state_num; - return platform_driver_register(&smmu_pmu_driver); + ret = platform_driver_register(&smmu_pmu_driver); + if (ret) + cpuhp_remove_multi_state(cpuhp_state_num); + + return ret; } module_init(arm_smmu_pmu_init); |