Merge "Revert "devfreq: bwmon: Serialize update_devfreq with governor start/stop()""

	struct bw_hwmon *hw;

	struct devfreq_dev_status stat;

	mutex_lock(&df->lock);

	node = find_hwmon_node(df);

	if (!node) {

		dev_err(dev, "Unable to find HW monitor!\n");

		mutex_unlock(&df->lock);

		return -ENODEV;

	}

	hw = node->hw;

	if (ret)

		goto err_sysfs;

	mutex_unlock(&df->lock);

	return 0;

err_sysfs:

	node->orig_data = NULL;

	hw->df = NULL;

	node->dev_ab = NULL;

	mutex_unlock(&df->lock);

	return ret;

}

	struct hwmon_node *node = df->data;

	struct bw_hwmon *hw = node->hw;

	mutex_lock(&df->lock);

	sysfs_remove_group(&df->dev.kobj, node->attr_grp);

	stop_monitor(df, true);

	df->data = node->orig_data;

	if (node->dev_ab)

		*node->dev_ab = 0;

	node->dev_ab = NULL;

	mutex_unlock(&df->lock);

}

static int gov_suspend(struct devfreq *df)