Re: [PATCH] leds: leds-cobalt-qube: Use devm_led_classdev_register

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Hi Vaishali,

Thanks for the patch.

On 08/27/2015 07:13 AM, Vaishali Thakkar wrote:
Use resource-managed function devm_led_classdev_register instead
of led_classdev_register to make the error-path simpler.

To be compatible with the change, goto is replaced with direct
return and unneeded label is dropped. Also, remove redundant
cobalt_qube_led_remove.

Signed-off-by: Vaishali Thakkar <vthakkar1994@xxxxxxxxx>
---
  drivers/leds/leds-cobalt-qube.c | 20 ++------------------
  1 file changed, 2 insertions(+), 18 deletions(-)

diff --git a/drivers/leds/leds-cobalt-qube.c b/drivers/leds/leds-cobalt-qube.c
index d975220..59818df 100644
--- a/drivers/leds/leds-cobalt-qube.c
+++ b/drivers/leds/leds-cobalt-qube.c
@@ -49,31 +49,15 @@ static int cobalt_qube_led_probe(struct platform_device *pdev)
  	led_value = LED_FRONT_LEFT | LED_FRONT_RIGHT;
  	writeb(led_value, led_port);

-	retval = led_classdev_register(&pdev->dev, &qube_front_led);
+	retval = devm_led_classdev_register(&pdev->dev, &qube_front_led);
  	if (retval)
-		goto err_null;

We can spare more lines by changing this to:

return devm_led_classdev_register(&pdev->dev, &qube_front_led);

You could get rid of retval then, too.

-
-	return 0;
-
-err_null:
-	led_port = NULL;
-
-	return retval;
-}
-
-static int cobalt_qube_led_remove(struct platform_device *pdev)
-{
-	led_classdev_unregister(&qube_front_led);
-
-	if (led_port)
-		led_port = NULL;
+		return retval;

  	return 0;
  }

  static struct platform_driver cobalt_qube_led_driver = {
  	.probe	= cobalt_qube_led_probe,
-	.remove	= cobalt_qube_led_remove,
  	.driver	= {
  		.name	= "cobalt-qube-leds",
  	},



--
Best Regards,
Jacek Anaszewski
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