linux-kernel - [PATCH 1/2] regulator: userspace-consumer: Convert to use devm

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Date:	Wed, 18 Apr 2012 09:34:34 +0800
From:	Axel Lin <axel.lin@...il.com>
To:	linux-kernel@...r.kernel.org
Cc:	Liam Girdwood <lrg@...com>,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>
Subject: [PATCH 1/2] regulator: userspace-consumer: Convert to use devm_*
 APIs

Signed-off-by: Axel Lin <axel.lin@...il.com>
---
 drivers/regulator/userspace-consumer.c |   20 +++++++-------------
 1 files changed, 7 insertions(+), 13 deletions(-)

diff --git a/drivers/regulator/userspace-consumer.c b/drivers/regulator/userspace-consumer.c
index 518667e..a7c8deb 100644
--- a/drivers/regulator/userspace-consumer.c
+++ b/drivers/regulator/userspace-consumer.c
@@ -115,7 +115,9 @@ static int regulator_userspace_consumer_probe(struct platform_device *pdev)
 	if (!pdata)
 		return -EINVAL;
 
-	drvdata = kzalloc(sizeof(struct userspace_consumer_data), GFP_KERNEL);
+	drvdata = devm_kzalloc(&pdev->dev,
+			       sizeof(struct userspace_consumer_data),
+			       GFP_KERNEL);
 	if (drvdata == NULL)
 		return -ENOMEM;
 
@@ -125,16 +127,16 @@ static int regulator_userspace_consumer_probe(struct platform_device *pdev)
 
 	mutex_init(&drvdata->lock);
 
-	ret = regulator_bulk_get(&pdev->dev, drvdata->num_supplies,
-				 drvdata->supplies);
+	ret = devm_regulator_bulk_get(&pdev->dev, drvdata->num_supplies,
+				      drvdata->supplies);
 	if (ret) {
 		dev_err(&pdev->dev, "Failed to get supplies: %d\n", ret);
-		goto err_alloc_supplies;
+		return ret;
 	}
 
 	ret = sysfs_create_group(&pdev->dev.kobj, &attr_group);
 	if (ret != 0)
-		goto err_create_attrs;
+		return ret;
 
 	if (pdata->init_on) {
 		ret = regulator_bulk_enable(drvdata->num_supplies,
@@ -154,11 +156,6 @@ static int regulator_userspace_consumer_probe(struct platform_device *pdev)
 err_enable:
 	sysfs_remove_group(&pdev->dev.kobj, &attr_group);
 
-err_create_attrs:
-	regulator_bulk_free(drvdata->num_supplies, drvdata->supplies);
-
-err_alloc_supplies:
-	kfree(drvdata);
 	return ret;
 }
 
@@ -171,9 +168,6 @@ static int regulator_userspace_consumer_remove(struct platform_device *pdev)
 	if (data->enabled)
 		regulator_bulk_disable(data->num_supplies, data->supplies);
 
-	regulator_bulk_free(data->num_supplies, data->supplies);
-	kfree(data);
-
 	return 0;
 }
 
-- 
1.7.5.4



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