linux-kernel - [PATCH 3/4] regulator: wm831x-isink: Use devm_request_threaded

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Message-Id: <1377947000-5746-3-git-send-email-broonie@kernel.org>
Date:	Sat, 31 Aug 2013 12:03:19 +0100
From:	Mark Brown <broonie@...nel.org>
To:	Liam Girdwood <lgirdwood@...il.com>
Cc:	patches@...nsource.wolfsonmicro.com, linux-kernel@...r.kernel.org,
	linaro-kernel@...ts.linaro.org, Mark Brown <broonie@...aro.org>
Subject: [PATCH 3/4] regulator: wm831x-isink: Use devm_request_threaded_irq()

From: Mark Brown <broonie@...aro.org>

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

Signed-off-by: Mark Brown <broonie@...aro.org>
---
 drivers/regulator/wm831x-isink.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/regulator/wm831x-isink.c b/drivers/regulator/wm831x-isink.c
index 4eb373d..841cb52 100644
--- a/drivers/regulator/wm831x-isink.c
+++ b/drivers/regulator/wm831x-isink.c
@@ -203,8 +203,10 @@ static int wm831x_isink_probe(struct platform_device *pdev)
 	}
 
 	irq = wm831x_irq(wm831x, platform_get_irq(pdev, 0));
-	ret = request_threaded_irq(irq, NULL, wm831x_isink_irq,
-				   IRQF_TRIGGER_RISING, isink->name, isink);
+	ret = devm_request_threaded_irq(&pdev->dev, irq, NULL,
+					wm831x_isink_irq,
+					IRQF_TRIGGER_RISING, isink->name,
+					isink);
 	if (ret != 0) {
 		dev_err(&pdev->dev, "Failed to request ISINK IRQ %d: %d\n",
 			irq, ret);
@@ -225,8 +227,6 @@ static int wm831x_isink_remove(struct platform_device *pdev)
 {
 	struct wm831x_isink *isink = platform_get_drvdata(pdev);
 
-	free_irq(wm831x_irq(isink->wm831x, platform_get_irq(pdev, 0)), isink);
-
 	regulator_unregister(isink->regulator);
 
 	return 0;
-- 
1.8.4.rc3

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