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Subject[PATCH 4/4] regulator: wm831x-ldo: Use devm_request_threaded_irq()
From: Mark Brown <broonie@linaro.org>

devm guarantees that resources are freed in the oposite order to that in
which they are allocated.

Signed-off-by: Mark Brown <broonie@linaro.org>
---
drivers/regulator/wm831x-ldo.c | 16 +++++++---------
1 file changed, 7 insertions(+), 9 deletions(-)

diff --git a/drivers/regulator/wm831x-ldo.c b/drivers/regulator/wm831x-ldo.c
index 1432b26..5570f3e 100644
--- a/drivers/regulator/wm831x-ldo.c
+++ b/drivers/regulator/wm831x-ldo.c
@@ -288,9 +288,10 @@ static int wm831x_gp_ldo_probe(struct platform_device *pdev)
}

irq = wm831x_irq(wm831x, platform_get_irq_byname(pdev, "UV"));
- ret = request_threaded_irq(irq, NULL, wm831x_ldo_uv_irq,
- IRQF_TRIGGER_RISING, ldo->name,
- ldo);
+ ret = devm_request_threaded_irq(&pdev->dev, irq, NULL,
+ wm831x_ldo_uv_irq,
+ IRQF_TRIGGER_RISING, ldo->name,
+ ldo);
if (ret != 0) {
dev_err(&pdev->dev, "Failed to request UV IRQ %d: %d\n",
irq, ret);
@@ -311,8 +312,6 @@ static int wm831x_gp_ldo_remove(struct platform_device *pdev)
{
struct wm831x_ldo *ldo = platform_get_drvdata(pdev);

- free_irq(wm831x_irq(ldo->wm831x,
- platform_get_irq_byname(pdev, "UV")), ldo);
regulator_unregister(ldo->regulator);

return 0;
@@ -514,8 +513,9 @@ static int wm831x_aldo_probe(struct platform_device *pdev)
}

irq = wm831x_irq(wm831x, platform_get_irq_byname(pdev, "UV"));
- ret = request_threaded_irq(irq, NULL, wm831x_ldo_uv_irq,
- IRQF_TRIGGER_RISING, ldo->name, ldo);
+ ret = devm_request_threaded_irq(&pdev->dev, irq, NULL,
+ wm831x_ldo_uv_irq,
+ IRQF_TRIGGER_RISING, ldo->name, ldo);
if (ret != 0) {
dev_err(&pdev->dev, "Failed to request UV IRQ %d: %d\n",
irq, ret);
@@ -536,8 +536,6 @@ static int wm831x_aldo_remove(struct platform_device *pdev)
{
struct wm831x_ldo *ldo = platform_get_drvdata(pdev);

- free_irq(wm831x_irq(ldo->wm831x, platform_get_irq_byname(pdev, "UV")),
- ldo);
regulator_unregister(ldo->regulator);

return 0;
--
1.8.4.rc3


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