Merge tag 'gpio-v4.19-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

Linus writes:
"GPIO fix for the v4.19 series:
- Fix up the interrupt parent for the irqdomains."

* tag 'gpio-v4.19-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
gpio: Assign gpio_irq_chip::parents to non-stack pointer

drivers/gpio/gpiolib.c

···
 		irq_set_chained_handler_and_data(parent_irq, parent_handler,
 						 gpiochip);
 
-		gpiochip->irq.parents = &parent_irq;
+		gpiochip->irq.parent_irq = parent_irq;
+		gpiochip->irq.parents = &gpiochip->irq.parent_irq;
 		gpiochip->irq.num_parents = 1;
 	}
 

include/linux/gpio/driver.h

···
 	unsigned int num_parents;
 
 	/**
+	 * @parent_irq:
+	 *
+	 * For use by gpiochip_set_cascaded_irqchip()
+	 */
+	unsigned int parent_irq;
+
+	/**
 	 * @parents:
 	 *
 	 * A list of interrupt parents of a GPIO chip. This is owned by the