From: Danny Kaehn kaehndan@gmail.com
[ 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 kaehndan@gmail.com Link: https://lore.kernel.org/r/20230210170044.11835-1-kaehndan@gmail.com Signed-off-by: Benjamin Tissoires benjamin.tissoires@redhat.com 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) {