gpio: tqmx86: fix uninitialized variable girq

The commit 92461060 ("gpio: tpmx86: Move PM device over to
irq domain") adds a dereference of girq that may be uninitialized.

Fix this by moving irq_domain_set_pm_device into if true branch
as suggested by Marc Zyngier.

Fixes: 92461060 ("gpio: tpmx86: Move PM device over to irq domain")
Suggested-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Dongliang Mu <mudongliangabcd@gmail.com>
Acked-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>

drivers/gpio/gpio-tqmx86.c

@@ -307,6 +307,8 @@ static int tqmx86_gpio_probe(struct platform_device *pdev)
 		girq->default_type = IRQ_TYPE_NONE;
 		girq->handler = handle_simple_irq;
 		girq->init_valid_mask = tqmx86_init_irq_valid_mask;
+
+		irq_domain_set_pm_device(girq->domain, dev);
 	}
 
 	ret = devm_gpiochip_add_data(dev, chip, gpio);
@@ -315,8 +317,6 @@ static int tqmx86_gpio_probe(struct platform_device *pdev)
 		goto out_pm_dis;
 	}
 
-	irq_domain_set_pm_device(girq->domain, dev);
-
 	dev_info(dev, "GPIO functionality initialized with %d pins\n",
 		 chip->ngpio);