Jun 01 2015

[media] radio-si470x-i2c: Pass the IRQF_ONESHOT flag 

Author: Fabio Estevam <fabio.estevam@freescale.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.

The semantic patch that makes this change is available
in scripts/coccinelle/misc/irqf_oneshot.cocci.

Signed-off-by: Fabio Estevam 
Signed-off-by: Hans Verkuil 
Signed-off-by: Mauro Carvalho Chehab 

---
 drivers/media/radio/si470x/radio-si470x-i2c.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
 
diff --git a/drivers/media/radio/si470x/radio-si470x-i2c.c b/drivers/media/radio/si470x/radio-si470x-i2c.c
index 2a497c8..49fe845 100644
--- a/drivers/media/radio/si470x/radio-si470x-i2c.c
+++ b/drivers/media/radio/si470x/radio-si470x-i2c.c
@@ -421,7 +421,8 @@ static int si470x_i2c_probe(struct i2c_client *client,
 	init_waitqueue_head(&radio->read_queue);
 
 	retval = request_threaded_irq(client->irq, NULL, si470x_i2c_interrupt,
-			IRQF_TRIGGER_FALLING, DRIVER_NAME, radio);
+			IRQF_TRIGGER_FALLING | IRQF_ONESHOT, DRIVER_NAME,
+			radio);
 	if (retval) {
 		dev_err(&client->dev, "Failed to register interrupt\n");
 		goto err_rds;

qlambert