From 88184162e9c0677757b7a97b03bcd0ebde8a7cf5 Mon Sep 17 00:00:00 2001 From: Hanjun Guo Date: Wed, 11 Dec 2019 14:43:06 +0800 Subject: [PATCH] perf/smmuv3: Remove the leftover put_cpu() in error path [ Upstream commit 8ae4bcf4821c18a8fbfa0b2c1df26c1085e9d923 ] 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 Acked-by: Will Deacon Signed-off-by: Hanjun Guo Signed-off-by: Catalin Marinas Signed-off-by: Sasha Levin --- 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 abcf54f7d19c..191f410cf35c 100644 --- a/drivers/perf/arm_smmuv3_pmu.c +++ b/drivers/perf/arm_smmuv3_pmu.c @@ -815,7 +815,7 @@ 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); @@ -834,8 +834,6 @@ 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; }