leds: convert Sun Fire LED driver to devm_kzalloc() and cleanup error exit path

Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Bryan Wu <bryan.wu@canonical.com>

diff --git a/drivers/leds/leds-sunfire.c b/drivers/leds/leds-sunfire.c
index 1757396..134d9a4 100644 (file)
--- a/drivers/leds/leds-sunfire.c
+++ b/drivers/leds/leds-sunfire.c
@@ -132,15 +132,13 @@ static int __devinit sunfire_led_generic_probe(struct platform_device *pdev,
        if (pdev->num_resources != 1) {
                printk(KERN_ERR PFX "Wrong number of resources %d, should be 1\n",
                       pdev->num_resources);
-               err = -EINVAL;
-               goto out;
+               return -EINVAL;
        }
 
-       p = kzalloc(sizeof(*p), GFP_KERNEL);
+       p = devm_kzalloc(&pdev->dev, sizeof(*p), GFP_KERNEL);
        if (!p) {
                printk(KERN_ERR PFX "Could not allocate struct sunfire_drvdata\n");
-               err = -ENOMEM;
-               goto out;
+               return -ENOMEM;
        }
 
        for (i = 0; i < NUM_LEDS_PER_BOARD; i++) {
@@ -156,20 +154,15 @@ static int __devinit sunfire_led_generic_probe(struct platform_device *pdev,
                if (err) {
                        printk(KERN_ERR PFX "Could not register %s LED\n",
                               lp->name);
-                       goto out_unregister_led_cdevs;
+                       for (i--; i >= 0; i--)
+                               led_classdev_unregister(&p->leds[i].led_cdev);
+                       return err;
                }
        }
 
        dev_set_drvdata(&pdev->dev, p);
 
        return 0;
-
-out_unregister_led_cdevs:
-       for (i--; i >= 0; i--)
-               led_classdev_unregister(&p->leds[i].led_cdev);
-       kfree(p);
-out:
-       return err;
 }
 
 static int __devexit sunfire_led_generic_remove(struct platform_device *pdev)
@@ -180,8 +173,6 @@ static int __devexit sunfire_led_generic_remove(struct platform_device *pdev)
        for (i = 0; i < NUM_LEDS_PER_BOARD; i++)
                led_classdev_unregister(&p->leds[i].led_cdev);
 
-       kfree(p);
-
        return 0;
 }