gpio: remove all usage of gpio_remove retval in driver/gpio

Signed-off-by: abdoulaye berthe <berthe.ab@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
diff --git a/drivers/gpio/gpio-tps65910.c b/drivers/gpio/gpio-tps65910.c
index e2f8cda..88f1f5f 100644
--- a/drivers/gpio/gpio-tps65910.c
+++ b/drivers/gpio/gpio-tps65910.c
@@ -190,7 +190,8 @@
 {
 	struct tps65910_gpio *tps65910_gpio = platform_get_drvdata(pdev);
 
-	return gpiochip_remove(&tps65910_gpio->gpio_chip);
+	gpiochip_remove(&tps65910_gpio->gpio_chip);
+	return 0;
 }
 
 static struct platform_driver tps65910_gpio_driver = {