On Wed, Aug 24, 2016 at 12:03:29AM +0200, Rafał Miłecki wrote:
> +static ssize_t ports_show(struct device *dev, struct device_attribute *attr,
> + char *buf)
> +{
> + struct led_classdev *led_cdev = dev_get_drvdata(dev);
> + struct usbport_trig_data *usbport_data = led_cdev->trigger_data;
> + struct usbport_trig_port *port;
> + ssize_t ret = 0;
> + int len;
> +
> + list_for_each_entry(port, &usbport_data->ports, list) {
> + len = sprintf(buf + ret, "%s\n", port->name);
> + if (len >= 0)
> + ret += len;
> + }
> +
> + return ret;
> +}
sysfs is "one value per file", here you are listing a bunch of things in
one sysfs file. Please don't do that.
greg k-h
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