linux-kernel - [PATCH 05/11] mfd: twl6040: use devm_gpio_request_one() and devm_request_threaded

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Date:	Wed, 20 Feb 2013 15:11:38 +0900
From:	Jingoo Han <jg1.han@...sung.com>
To:	'Samuel Ortiz' <sameo@...ux.intel.com>
Cc:	linux-kernel@...r.kernel.org, 'Jingoo Han' <jg1.han@...sung.com>
Subject: [PATCH 05/11] mfd: twl6040: use devm_gpio_request_one() and
 devm_request_threaded_irq()

Use devm_gpio_request_one() and devm_request_threaded_irq() to make
cleanup paths and  more simple.

Signed-off-by: Jingoo Han <jg1.han@...sung.com>
---
 drivers/mfd/twl6040.c |   26 +++++++-------------------
 1 files changed, 7 insertions(+), 19 deletions(-)

diff --git a/drivers/mfd/twl6040.c b/drivers/mfd/twl6040.c
index f361bf3..2d38512 100644
--- a/drivers/mfd/twl6040.c
+++ b/drivers/mfd/twl6040.c
@@ -586,8 +586,8 @@ static int twl6040_probe(struct i2c_client *client,
 		twl6040->audpwron = -EINVAL;
 
 	if (gpio_is_valid(twl6040->audpwron)) {
-		ret = gpio_request_one(twl6040->audpwron, GPIOF_OUT_INIT_LOW,
-				       "audpwron");
+		ret = devm_gpio_request_one(twl6040->dev, twl6040->audpwron,
+					GPIOF_OUT_INIT_LOW, "audpwron");
 		if (ret)
 			goto gpio_err;
 	}
@@ -596,14 +596,14 @@ static int twl6040_probe(struct i2c_client *client,
 			IRQF_ONESHOT, 0, &twl6040_irq_chip,
 			&twl6040->irq_data);
 	if (ret < 0)
-		goto irq_init_err;
+		goto gpio_err;
 
 	twl6040->irq_ready = regmap_irq_get_virq(twl6040->irq_data,
 					       TWL6040_IRQ_READY);
 	twl6040->irq_th = regmap_irq_get_virq(twl6040->irq_data,
 					       TWL6040_IRQ_TH);
 
-	ret = request_threaded_irq(twl6040->irq_ready, NULL,
+	ret = devm_request_threaded_irq(twl6040->dev, twl6040->irq_ready, NULL,
 				   twl6040_readyint_handler, IRQF_ONESHOT,
 				   "twl6040_irq_ready", twl6040);
 	if (ret) {
@@ -611,12 +611,12 @@ static int twl6040_probe(struct i2c_client *client,
 		goto readyirq_err;
 	}
 
-	ret = request_threaded_irq(twl6040->irq_th, NULL,
+	ret = devm_request_threaded_irq(twl6040->dev, twl6040->irq_th, NULL,
 				   twl6040_thint_handler, IRQF_ONESHOT,
 				   "twl6040_irq_th", twl6040);
 	if (ret) {
 		dev_err(twl6040->dev, "Thermal IRQ request failed: %d\n", ret);
-		goto thirq_err;
+		goto readyirq_err;
 	}
 
 	/* dual-access registers controlled by I2C only */
@@ -676,19 +676,12 @@ static int twl6040_probe(struct i2c_client *client,
 	ret = mfd_add_devices(&client->dev, -1, twl6040->cells, children,
 			      NULL, 0, NULL);
 	if (ret)
-		goto mfd_err;
+		goto readyirq_err;
 
 	return 0;
 
-mfd_err:
-	free_irq(twl6040->irq_th, twl6040);
-thirq_err:
-	free_irq(twl6040->irq_ready, twl6040);
 readyirq_err:
 	regmap_del_irq_chip(twl6040->irq, twl6040->irq_data);
-irq_init_err:
-	if (gpio_is_valid(twl6040->audpwron))
-		gpio_free(twl6040->audpwron);
 gpio_err:
 	regulator_bulk_disable(TWL6040_NUM_SUPPLIES, twl6040->supplies);
 power_err:
@@ -706,11 +699,6 @@ static int twl6040_remove(struct i2c_client *client)
 	if (twl6040->power_count)
 		twl6040_power(twl6040, 0);
 
-	if (gpio_is_valid(twl6040->audpwron))
-		gpio_free(twl6040->audpwron);
-
-	free_irq(twl6040->irq_ready, twl6040);
-	free_irq(twl6040->irq_th, twl6040);
 	regmap_del_irq_chip(twl6040->irq, twl6040->irq_data);
 
 	mfd_remove_devices(&client->dev);
-- 
1.7.2.5


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