From 59b62e7ad0874681dc4f84cac90cc991dc265809 Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Wed, 4 Jul 2018 11:50:50 +0100 Subject: [PATCH] drivers/perf: Initialise return value in armpmu_request_irqs() If a PMU doesn't have any IRQs, we should return 0 from armpmu_request_irqs(), rather than uninitialised stack. Signed-off-by: Will Deacon --- drivers/perf/arm_pmu_platform.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/perf/arm_pmu_platform.c b/drivers/perf/arm_pmu_platform.c index 971ff33..96075ce 100644 --- a/drivers/perf/arm_pmu_platform.c +++ b/drivers/perf/arm_pmu_platform.c @@ -160,7 +160,7 @@ static int pmu_parse_irqs(struct arm_pmu *pmu) static int armpmu_request_irqs(struct arm_pmu *armpmu) { struct pmu_hw_events __percpu *hw_events = armpmu->hw_events; - int cpu, err; + int cpu, err = 0; for_each_cpu(cpu, &armpmu->supported_cpus) { int irq = per_cpu(hw_events->irq, cpu); -- 2.7.4