linux-kernel - [PATCH 3/5] mfd: pcf50633 - move creating of regulator devices out of line

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Date:	Sun, 15 Nov 2009 22:08:54 -0800
From:	Dmitry Torokhov <dmitry.torokhov@...il.com>
To:	Samuel Ortiz <sameo@...ux.intel.com>
Cc:	linux-kernel@...r.kernel.org, Lars-Peter Clausen <lars@...afoo.de>,
	Balaji Rao <balajirrao@...nmoko.org>
Subject: [PATCH 3/5] mfd: pcf50633 - move creating of regulator devices out of
	line

This cleans up pcf50633_probe a bit and lays ground for the patch adding
error handling to the probe function.

Signed-off-by: Dmitry Torokhov <dtor@...l.ru>
---

 drivers/mfd/pcf50633-core.c |   57 +++++++++++++++++++++++++++++++------------
 1 files changed, 41 insertions(+), 16 deletions(-)

diff --git a/drivers/mfd/pcf50633-core.c b/drivers/mfd/pcf50633-core.c
index ff43f34..474a76c 100644
--- a/drivers/mfd/pcf50633-core.c
+++ b/drivers/mfd/pcf50633-core.c
@@ -438,6 +438,45 @@ out:
 	return IRQ_HANDLED;
 }
 
+static int pcf50633_regulator_dev_register(struct pcf50633 *pcf,
+					   unsigned int num)
+{
+	struct pcf50633_platform_data *pdata = pcf->pdata;
+	struct platform_device *pdev;
+	int error;
+
+	pdev = platform_device_alloc("pcf50633-regltr", num);
+	if (!pdev) {
+		dev_err(pcf->dev,
+			"Not enough memory for regulator device %d\n", num);
+		return -ENOMEM;
+	}
+
+	pdev->dev.parent = pcf->dev;
+
+	error = platform_device_add_data(pdev, &pdata->reg_init_data[num],
+					 sizeof(pdata->reg_init_data[num]));
+	if (error) {
+		dev_err(pcf->dev, "Failed to add platform data for %s: %d\n",
+			dev_name(&pdev->dev), error);
+		goto err_free_dev;
+	}
+
+	error = platform_device_add(pdev);
+	if (error) {
+		dev_err(pcf->dev, "Failed to register %s: %d\n",
+			dev_name(&pdev->dev), error);
+		goto err_free_dev;
+	}
+
+	pcf->regulator_pdev[num] = pdev;
+	return 0;
+
+ err_free_dev:
+	platform_device_put(pdev);
+	return error;
+}
+
 static void
 pcf50633_client_dev_register(struct pcf50633 *pcf, const char *name,
 						struct platform_device **pdev)
@@ -588,22 +627,8 @@ static int __devinit pcf50633_probe(struct i2c_client *client,
 	pcf50633_client_dev_register(pcf, "pcf50633-adc",
 						&pcf->adc_pdev);
 
-	for (i = 0; i < PCF50633_NUM_REGULATORS; i++) {
-		struct platform_device *pdev;
-
-		pdev = platform_device_alloc("pcf50633-regltr", i);
-		if (!pdev) {
-			dev_err(pcf->dev, "Cannot create regulator %d\n", i);
-			continue;
-		}
-
-		pdev->dev.parent = pcf->dev;
-		platform_device_add_data(pdev, &pdata->reg_init_data[i],
-					sizeof(pdata->reg_init_data[i]));
-		pcf->regulator_pdev[i] = pdev;
-
-		platform_device_add(pdev);
-	}
+	for (i = 0; i < PCF50633_NUM_REGULATORS; i++)
+		pcf50633_regulator_dev_register(pcf, i);
 
 	if (enable_irq_wake(client->irq) < 0)
 		dev_err(pcf->dev, "IRQ %u cannot be enabled as wake-up source"

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