From: Danny Kaehn <redacted>

[ Upstream commit 37f5b858a66543b2b67c0288280af623985abc29 ]

The CP2112 generates interrupts from a polling routine on a thread,
and can only support threaded interrupts. This patch configures the
gpiochip irq chip with this flag, disallowing consumers to request
a hard IRQ from this driver, which resulted in a segfault previously.

Signed-off-by: Danny Kaehn <redacted>
Link: https://lore.kernel.org/r/20230210170044.11835-1-kaehndan@gmail.com (local)
Signed-off-by: Benjamin Tissoires <redacted>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/hid/hid-cp2112.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/hid/hid-cp2112.c b/drivers/hid/hid-cp2112.c
index 1e16b0fa310d1..27cadadda7c9d 100644
--- a/drivers/hid/hid-cp2112.c
+++ b/drivers/hid/hid-cp2112.c

@@ -1354,6 +1354,7 @@ static int cp2112_probe(struct hid_device *hdev, const struct hid_device_id *id)
 	girq->parents = NULL;
 	girq->default_type = IRQ_TYPE_NONE;
 	girq->handler = handle_simple_irq;
+	girq->threaded = true;
 
 	ret = gpiochip_add_data(&dev->gc, dev);
 	if (ret < 0) {

-- 
2.39.2