On Wed, Jun 25, 2014 at 10:08 AM, Johan Hovold <johan@xxxxxxxxxx> wrote:
> Use the attribute groups of the led-class to create the sata attribute
> during probe in order to avoid racing with userspace.
>
> Signed-off-by: Johan Hovold <johan@xxxxxxxxxx>
> ---
> drivers/leds/leds-netxbig.c | 26 ++++++++++++--------------
> 1 file changed, 12 insertions(+), 14 deletions(-)
>
> diff --git a/drivers/leds/leds-netxbig.c b/drivers/leds/leds-netxbig.c
> index e97f443a6e07..8ab931b8fcd3 100644
> --- a/drivers/leds/leds-netxbig.c
> +++ b/drivers/leds/leds-netxbig.c
> @@ -293,10 +293,14 @@ static ssize_t netxbig_led_sata_show(struct device *dev,
>
> static DEVICE_ATTR(sata, 0644, netxbig_led_sata_show, netxbig_led_sata_store);
>
> +static struct attribute *netxbig_led_attrs[] = {
> + &dev_attr_sata.attr,
> + NULL
> +};
> +ATTRIBUTE_GROUPS(netxbig_led);
> +
> static void delete_netxbig_led(struct netxbig_led_data *led_dat)
> {
> - if (led_dat->mode_val[NETXBIG_LED_SATA] != NETXBIG_LED_INVALID_MODE)
> - device_remove_file(led_dat->cdev.dev, &dev_attr_sata);
> led_classdev_unregister(&led_dat->cdev);
> }
>
> @@ -327,6 +331,12 @@ create_netxbig_led(struct platform_device *pdev,
> led_dat->sata = 0;
> led_dat->cdev.brightness = LED_OFF;
> led_dat->cdev.flags |= LED_CORE_SUSPENDRESUME;
> + /*
> + * If available, expose the SATA activity blink capability through
> + * a "sata" sysfs attribute.
> + */
> + if (led_dat->mode_val[NETXBIG_LED_SATA] != NETXBIG_LED_INVALID_MODE)
> + led_dat->cdev.groups = netxbig_led_groups;
> led_dat->mode_addr = template->mode_addr;
> led_dat->mode_val = template->mode_val;
> led_dat->bright_addr = template->bright_addr;
> @@ -335,18 +345,6 @@ create_netxbig_led(struct platform_device *pdev,
> led_dat->num_timer = pdata->num_timer;
>
> ret = led_classdev_register(&pdev->dev, &led_dat->cdev);
Let's just "return led_classdev_register(&pdev->dev, &led_dat->cdev);"
and remove "ret"
I will handle this trivial change.
-Bryan
> - if (ret < 0)
> - return ret;
> -
> - /*
> - * If available, expose the SATA activity blink capability through
> - * a "sata" sysfs attribute.
> - */
> - if (led_dat->mode_val[NETXBIG_LED_SATA] != NETXBIG_LED_INVALID_MODE) {
> - ret = device_create_file(led_dat->cdev.dev, &dev_attr_sata);
> - if (ret)
> - led_classdev_unregister(&led_dat->cdev);
> - }
>
> return ret;
> }
> --
> 1.8.5.5
>
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