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HID: cp2112: Fix driver not registering GPIO IRQ chip as threaded 

[ Upstream commit 37f5b858a6 ]

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>
This commit is contained in:
Danny Kaehn 2023-02-10 11:00:44 -06:00 committed by Greg Kroah-Hartman
parent 586a9fe142
commit aee32b594f
1 changed files with 1 additions and 0 deletions
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drivers/hid/hid-cp2112.c
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@ -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) {