Requesting a threaded interrupt without a primary handler and without
IRQF_ONESHOT is dangerous, and after commit 1c6c6952 (genirq: Reject
bogus threaded irq requests), these requests are rejected. This
causes ->probe() to fail, and the RTC driver not to be availble.
To fix, add IRQF_ONESHOT to the IRQ flags.
Tested on OMAP3730/OveroSTORM and OMAP4430/Panda board using rtcwake
to wake from system suspend multiple times.
Signed-off-by: Kevin Hilman <khilman@xxxxxx>
---
Resending to broader audience and including Andrew. Since, I understand
that drivers/rtc is somewhat orphaned, Andrew, can you queue this fix for
v3.5. Thanks.
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");
--
1.7.9.2
--
To unsubscribe from this list: send the line "unsubscribe linux-omap" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
