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Subject[PATCH 13/25] leds: convert Sun Fire LED driver to devm_kzalloc() and cleanup error exit path
Date
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Bryan Wu <bryan.wu@canonical.com>
---
drivers/leds/leds-sunfire.c | 21 ++++++---------------
1 file changed, 6 insertions(+), 15 deletions(-)

diff --git a/drivers/leds/leds-sunfire.c b/drivers/leds/leds-sunfire.c
index 1757396..134d9a4 100644
--- 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;
}

--
1.7.10.4


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