[PATCH] gpio: zynq: fix runtime PM leak on remove

[Pandey, Radhey Shyam]

> pm_runtime_get_sync() increments the runtime PM usage counter even when it
> returns an error. zynq_gpio_remove() uses it to keep the controller active
> while removing the GPIO chip, but never drops the usage counter again.
> 
> Balance the get with pm_runtime_put_noidle() after disabling runtime PM.
> 
> Fixes: 3242ba117e9b ("gpio: Add driver for Zynq GPIO controller")
> Signed-off-by: Ruoyu Wang <ruoyuw560 at gmail.com>

Reviewed-by: Radhey Shyam Pandey <radhey.shyam.pandey at amd.com>
Thanks!

> ---
>   drivers/gpio/gpio-zynq.c | 1 +
>   1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/gpio/gpio-zynq.c b/drivers/gpio/gpio-zynq.c
> index 571e366624d2a..fafca91128b2e 100644
> --- a/drivers/gpio/gpio-zynq.c
> +++ b/drivers/gpio/gpio-zynq.c
> @@ -1014,6 +1014,7 @@ static void zynq_gpio_remove(struct platform_device *pdev)
>   	gpiochip_remove(&gpio->chip);
>   	device_set_wakeup_capable(&pdev->dev, 0);
>   	pm_runtime_disable(&pdev->dev);
> +	pm_runtime_put_noidle(&pdev->dev);
>   }
>   
>   static struct platform_driver zynq_gpio_driver = {