iio: exynos-adc: fix irqf_oneshot.cocci warnings

Author: Valentin Rothberg <valentinrothberg@gmail.com>

Since commit 1c6c69525b40 ("genirq: Reject bogus threaded irq requests")
threaded IRQs without a primary handler need to be requested with
IRQF_ONESHOT, otherwise the request will fail.

So pass the IRQF_ONESHOT flag in this case.

Generated by: scripts/coccinelle/misc/irqf_oneshot.cocci

Signed-off-by: Fengguang Wu 
Signed-off-by: Valentin Rothberg 
Signed-off-by: Olof Johansson 
 drivers/iio/adc/exynos_adc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/iio/adc/exynos_adc.c b/drivers/iio/adc/exynos_adc.c
index d11cd60..c15756d 100644
--- a/drivers/iio/adc/exynos_adc.c
+++ b/drivers/iio/adc/exynos_adc.c
@@ -739,7 +739,7 @@ static int exynos_adc_ts_init(struct exynos_adc *info)
 	ret = request_threaded_irq(info->tsirq, NULL, exynos_ts_isr,
-				   0, "touchscreen", info);
+				   IRQF_ONESHOT, "touchscreen", info);
 	if (ret)