linux-kernel - [PATCH 08/20] regulator: lp3971: use devm_regulator

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Message-id: <001101ceb9c5$72471500$56d53f00$%han@samsung.com>
Date:	Wed, 25 Sep 2013 17:01:31 +0900
From:	Jingoo Han <jg1.han@...sung.com>
To:	'Mark Brown' <broonie@...nel.org>
Cc:	'Liam Girdwood' <lgirdwood@...il.com>,
	linux-kernel@...r.kernel.org, 'Jingoo Han' <jg1.han@...sung.com>,
	'Marek Szyprowski' <m.szyprowski@...sung.com>
Subject: [PATCH 08/20] regulator: lp3971: use devm_regulator_register()

Use devm_regulator_register() to make cleanup paths simpler.

Signed-off-by: Jingoo Han <jg1.han@...sung.com>
---
 drivers/regulator/lp3971.c |   11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

diff --git a/drivers/regulator/lp3971.c b/drivers/regulator/lp3971.c
index 5a4604e..97452a2 100644
--- a/drivers/regulator/lp3971.c
+++ b/drivers/regulator/lp3971.c
@@ -400,8 +400,9 @@ static int setup_regulators(struct lp3971 *lp3971,
 		config.init_data = reg->initdata;
 		config.driver_data = lp3971;
 
-		lp3971->rdev[i] = regulator_register(&regulators[reg->id],
-						     &config);
+		lp3971->rdev[i] = devm_regulator_register(lp3971->dev,
+							  &regulators[reg->id],
+							  &config);
 		if (IS_ERR(lp3971->rdev[i])) {
 			err = PTR_ERR(lp3971->rdev[i]);
 			dev_err(lp3971->dev, "regulator init failed: %d\n",
@@ -413,8 +414,6 @@ static int setup_regulators(struct lp3971 *lp3971,
 	return 0;
 
 error:
-	while (--i >= 0)
-		regulator_unregister(lp3971->rdev[i]);
 	kfree(lp3971->rdev);
 	lp3971->rdev = NULL;
 err_nomem:
@@ -463,10 +462,6 @@ static int lp3971_i2c_probe(struct i2c_client *i2c,
 static int lp3971_i2c_remove(struct i2c_client *i2c)
 {
 	struct lp3971 *lp3971 = i2c_get_clientdata(i2c);
-	int i;
-
-	for (i = 0; i < lp3971->num_regulators; i++)
-		regulator_unregister(lp3971->rdev[i]);
 
 	kfree(lp3971->rdev);
 
-- 
1.7.10.4


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