linux-kernel - Applied "regulator: pwm-regulator: Don't assign structure attributes right away" to the regulator tree

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Date:	Tue, 07 Jul 2015 19:30:59 +0100
From:	Mark Brown <broonie@...nel.org>
To:	Lee Jones <lee.jones@...aro.org>, Mark Brown <broonie@...nel.org>
Cc:	linux-kernel@...r.kernel.org
Subject: Applied "regulator: pwm-regulator: Don't assign structure attributes right away" to the regulator tree

The patch

   regulator: pwm-regulator: Don't assign structure attributes right away

has been applied to the regulator tree at

   git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator.git 

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.  

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark

>From 5ad2cb14f5b8f3cb3d8688115037751b1ff45455 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@...aro.org>
Date: Tue, 7 Jul 2015 16:06:53 +0100
Subject: [PATCH] regulator: pwm-regulator: Don't assign structure attributes
 right away

Perhaps this is just personal preference, but ...

This patch introduces a new local variable to receive and test regulator
initialisation data.  It simplifies and cleans up the code making it
that little bit easier to read and maintain.  The local value is assigned
to the structure attribute when all the others are.  This is the way we
usually do things.

Prevents this kind of nonsense:

	this->is->just.silly = fetch_silly_value(&pointer);
	if (!this->is->just.silly) {
		printk("Silly value failed: %d\n", this->is->just.silly);
		return this->is->just.silly;
	}

Signed-off-by: Lee Jones <lee.jones@...aro.org>
Signed-off-by: Mark Brown <broonie@...nel.org>
---
 drivers/regulator/pwm-regulator.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/regulator/pwm-regulator.c b/drivers/regulator/pwm-regulator.c
index d5cb267fa192..cb482089050b 100644
--- a/drivers/regulator/pwm-regulator.c
+++ b/drivers/regulator/pwm-regulator.c
@@ -218,6 +218,7 @@ static int pwm_regulator_init_continuous(struct platform_device *pdev,

 static int pwm_regulator_probe(struct platform_device *pdev)
 {
+	const struct regulator_init_data *init_data;
 	struct pwm_regulator_data *drvdata;
 	struct regulator_dev *regulator;
 	struct regulator_config config = { };
@@ -240,14 +241,15 @@ static int pwm_regulator_probe(struct platform_device *pdev)
 	if (ret)
 		return ret;

-	config.init_data = of_get_regulator_init_data(&pdev->dev, np,
-						      &pwm_regulator_desc);
-	if (!config.init_data)
+	init_data = of_get_regulator_init_data(&pdev->dev, np,
+					       &pwm_regulator_desc);
+	if (!init_data)
 		return -ENOMEM;

 	config.of_node = np;
 	config.dev = &pdev->dev;
 	config.driver_data = drvdata;
+	config.init_data = init_data;

 	drvdata->pwm = devm_pwm_get(&pdev->dev, NULL);
 	if (IS_ERR(drvdata->pwm)) {
-- 
2.1.4

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