wm831x_power: Use IRQF_ONESHOT to request threaded IRQs

commit 90adf98d upstream.

Since commit 1c6c6952 ("genirq: Reject bogus threaded irq requests")
threaded IRQs without a primary handler need to be requested with
IRQF_ONESHOT, otherwise the request will fail.

scripts/coccinelle/misc/irqf_oneshot.cocci detected this issue.

Fixes: b5874f33 ("wm831x_power: Use genirq")
Signed-off-by: Valentin Rothberg <valentinrothberg@gmail.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

drivers/power/wm831x_power.c

@@ -557,7 +557,7 @@ static __devinit int wm831x_power_probe(struct platform_device *pdev)
 
 	irq = platform_get_irq_byname(pdev, "SYSLO");
 	ret = request_threaded_irq(irq, NULL, wm831x_syslo_irq,
-				   IRQF_TRIGGER_RISING, "System power low",
+				   IRQF_TRIGGER_RISING | IRQF_ONESHOT, "System power low",
 				   power);
 	if (ret != 0) {
 		dev_err(&pdev->dev, "Failed to request SYSLO IRQ %d: %d\n",
@@ -567,7 +567,7 @@ static __devinit int wm831x_power_probe(struct platform_device *pdev)
 
 	irq = platform_get_irq_byname(pdev, "PWR SRC");
 	ret = request_threaded_irq(irq, NULL, wm831x_pwr_src_irq,
-				   IRQF_TRIGGER_RISING, "Power source",
+				   IRQF_TRIGGER_RISING | IRQF_ONESHOT, "Power source",
 				   power);
 	if (ret != 0) {
 		dev_err(&pdev->dev, "Failed to request PWR SRC IRQ %d: %d\n",
@@ -578,7 +578,7 @@ static __devinit int wm831x_power_probe(struct platform_device *pdev)
 	for (i = 0; i < ARRAY_SIZE(wm831x_bat_irqs); i++) {
 		irq = platform_get_irq_byname(pdev, wm831x_bat_irqs[i]);
 		ret = request_threaded_irq(irq, NULL, wm831x_bat_irq,
-					   IRQF_TRIGGER_RISING,
+					   IRQF_TRIGGER_RISING | IRQF_ONESHOT,
 					   wm831x_bat_irqs[i],
 					   power);
 		if (ret != 0) {