[PATCH -next] rtc-twl: pass IRQF_ONESHOT to request_threaded_irq

From: Ming Lei
Date: Wed May 16 2012 - 23:36:19 EST


The flag of IRQF_ONESHOT should be passed to request_threaded_irq,
otherwise the following failure message will be dumped because
hardware handler is defined as NULL:

[ 3.329864] genirq: Threaded irq requested with handler=NULL and
!ONESHOT for irq 363
[ 3.338226] twl_rtc twl_rtc: IRQ is not free.
[ 3.346099] twl_rtc: probe of twl_rtc failed with error -22

The patch fixes the rtc-twl probe failure.

Signed-off-by: Ming Lei <ming.lei@xxxxxxxxxxxxx>
---
drivers/rtc/rtc-twl.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/rtc/rtc-twl.c b/drivers/rtc/rtc-twl.c
index 258abea..c5d06fe 100644
--- a/drivers/rtc/rtc-twl.c
+++ b/drivers/rtc/rtc-twl.c
@@ -510,7 +510,7 @@ static int __devinit twl_rtc_probe(struct platform_device *pdev)
}

ret = request_threaded_irq(irq, NULL, twl_rtc_interrupt,
- IRQF_TRIGGER_RISING,
+ IRQF_TRIGGER_RISING | IRQF_ONESHOT,
dev_name(&rtc->dev), rtc);
if (ret < 0) {
dev_err(&pdev->dev, "IRQ is not free.\n");
--
1.7.9.5

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