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gpio: siox: explicitly support only threaded irqs
commit45ccf65567
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@pengutronix.de Fixes:be8c8facc7
("gpio: new driver to work with a 8x12 siox") Cc: stable@vger.kernel.org Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -245,6 +245,7 @@ static int gpio_siox_probe(struct siox_device *sdevice)
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girq->chip = &ddata->ichip;
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girq->default_type = IRQ_TYPE_NONE;
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girq->handler = handle_level_irq;
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girq->threaded = true;
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ret = devm_gpiochip_add_data(dev, &ddata->gchip, NULL);
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if (ret)
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