x86 platform drivers: fix gpio leak

when request_irq fails, we should release gpiochip

v2:
fix warning: ignoring return value of 'gpiochip_remove

Signed-off-by: Libo Chen <[e-mail]>
Signed-off-by: Matthew Garrett <[e-mail]>

drivers/platform/x86/intel_pmic_gpio.c

···
 	retval = request_irq(pg->irq, pmic_irq_handler, 0, "pmic", pg);
 	if (retval) {
 		pr_warn("Interrupt request failed\n");
-		goto err;
+		goto fail_request_irq;
 	}
 
 	for (i = 0; i < 8; i++) {
···
 		irq_set_chip_data(i + pg->irq_base, pg);
 	}
 	return 0;
+
+fail_request_irq:
+	if (gpiochip_remove(&pg->chip))
+		pr_err("gpiochip_remove failed\n");
 err:
 	iounmap(pg->gpiointr);
 err2: