From: Ahmad Fatoum <a.fatoum@xxxxxxxxxxxxxx>
commit 45ccf6556720293323c20cda717756014ff63007 upstream.
The gpio-siox driver uses handle_nested_irq() to implement its
interrupt support. This is only capable of handling threaded irq
actions. For a hardirq action it triggers a NULL pointer oops.
(It calls action->thread_fn which is NULL then.)
Prevent registration of a hardirq action by setting
gpio_irq_chip::threaded to true.
Cc: u.kleine-koenig@xxxxxxxxxxxxxx
Fixes: be8c8facc707 ("gpio: new driver to work with a 8x12 siox")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Ahmad Fatoum <a.fatoum@xxxxxxxxxxxxxx>
Acked-by: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@xxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpio/gpio-siox.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/gpio/gpio-siox.c
+++ b/drivers/gpio/gpio-siox.c
@@ -245,6 +245,7 @@ static int gpio_siox_probe(struct siox_d
girq->chip = &ddata->ichip;
girq->default_type = IRQ_TYPE_NONE;
girq->handler = handle_level_irq;
+ girq->threaded = true;
ret = devm_gpiochip_add_data(dev, &ddata->gchip, NULL);
if (ret)
