Use the attribute groups of the led-class to create the blink attribute
during probe in order to avoid racing with userspace.
Signed-off-by: Johan Hovold <johan@xxxxxxxxxx>
---
drivers/leds/leds-ss4200.c | 14 +++++++++-----
1 file changed, 9 insertions(+), 5 deletions(-)
diff --git a/drivers/leds/leds-ss4200.c b/drivers/leds/leds-ss4200.c
index 2eb3ef62962b..046cb7008745 100644
--- a/drivers/leds/leds-ss4200.c
+++ b/drivers/leds/leds-ss4200.c
@@ -469,6 +469,12 @@ static ssize_t nas_led_blink_store(struct device *dev,
static DEVICE_ATTR(blink, 0644, nas_led_blink_show, nas_led_blink_store);
+static struct attribute *nasgpio_led_attrs[] = {
+ &dev_attr_blink.attr,
+ NULL
+};
+ATTRIBUTE_GROUPS(nasgpio_led);
+
static int register_nasgpio_led(int led_nr)
{
int ret;
@@ -481,20 +487,18 @@ static int register_nasgpio_led(int led_nr)
led->brightness = LED_FULL;
led->brightness_set = nasgpio_led_set_brightness;
led->blink_set = nasgpio_led_set_blink;
+ led->groups = nasgpio_led_groups;
ret = led_classdev_register(&nas_gpio_pci_dev->dev, led);
if (ret)
return ret;
- ret = device_create_file(led->dev, &dev_attr_blink);
- if (ret)
- led_classdev_unregister(led);
- return ret;
+
+ return 0;
}
static void unregister_nasgpio_led(int led_nr)
{
struct led_classdev *led = get_classdev_for_led_nr(led_nr);
led_classdev_unregister(led);
- device_remove_file(led->dev, &dev_attr_blink);
}
/*
* module load/initialization
--
1.8.5.5
--
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