gpio: adnp: Fix segfault if request_threaded_irq fails

In case request_threaded_irq inside adnp_irq_setup fails, the driver
segfaults. This is because irq_domain_remove is called twice with
the same pointer. First time in adnp_irq_setup and then a second time
after leaving adnp_irq_setup in the error path of adnp_i2c_probe
inside adnp_teardown.
This fixes this by removing the call to irq_domain_remove from
adnp_irq_setup.

Signed-off-by: Lars Poeschel <poeschel@lemonage.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/gpio/gpio-adnp.c

@@ -490,15 +490,11 @@ static int adnp_irq_setup(struct adnp *adnp)
 	if (err != 0) {
 		dev_err(chip->dev, "can't request IRQ#%d: %d\n",
 			adnp->client->irq, err);
-		goto error;
+		return err;
 	}
 
 	chip->to_irq = adnp_gpio_to_irq;
 	return 0;
-
-error:
-	irq_domain_remove(adnp->domain);
-	return err;
 }
 
 static void adnp_irq_teardown(struct adnp *adnp)