armpmu_reserve_hardware(struct arm_pmu *armpmu)
{
	int err;
	struct platform_device *pmu_device = armpmu->plat_device;

	if (!pmu_device)
		return -ENODEV;

	pm_runtime_get_sync(&pmu_device->dev);
	err = armpmu->request_irq(armpmu, armpmu_dispatch_irq);
	if (err) {
		armpmu_release_hardware(armpmu);
		return err;
	}

	return 0;
}

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.