Messages in this thread Patch in this message | | | From | Hanjun Guo <> | Subject | [PATCH v2] perf/smmuv3: Remove the leftover put_cpu() in error path | Date | Wed, 11 Dec 2019 14:43:06 +0800 |
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In smmu_pmu_probe(), there is put_cpu() in the error path, which is wrong because we use raw_smp_processor_id() to get the cpu ID, not get_cpu(), remove it.
While we are at it, kill 'out_cpuhp_err' altogether and just return err if we fail to add the hotplug instance.
Acked-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Hanjun Guo <guohanjun@huawei.com> --- drivers/perf/arm_smmuv3_pmu.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/drivers/perf/arm_smmuv3_pmu.c b/drivers/perf/arm_smmuv3_pmu.c index 773128f..d704ecc 100644 --- a/drivers/perf/arm_smmuv3_pmu.c +++ b/drivers/perf/arm_smmuv3_pmu.c @@ -814,7 +814,7 @@ static int smmu_pmu_probe(struct platform_device *pdev) if (err) { dev_err(dev, "Error %d registering hotplug, PMU @%pa\n", err, &res_0->start); - goto out_cpuhp_err; + return err; } err = perf_pmu_register(&smmu_pmu->pmu, name, -1); @@ -833,8 +833,6 @@ static int smmu_pmu_probe(struct platform_device *pdev) out_unregister: cpuhp_state_remove_instance_nocalls(cpuhp_state_num, &smmu_pmu->node); -out_cpuhp_err: - put_cpu(); return err; } -- 1.7.12.4
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