From: Mark Brown <broonie@linaro.org>
Date: Sat, 31 Aug 2013 10:50:00 +0000 (+0100)
Subject: regulator: wm831x-ldo: Use devm_request_threaded_irq()
X-Git-Tag: firefly_0821_release~176^2~5011^2~23^2~54
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=41c7a879d1d637c0c9731682a822b1c3162b0764;p=firefly-linux-kernel-4.4.55.git

regulator: wm831x-ldo: Use devm_request_threaded_irq()

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>
---

diff --git a/drivers/regulator/wm831x-ldo.c b/drivers/regulator/wm831x-ldo.c
index 1432b26ef2e9..5570f3e59170 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;