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

[Ruoyu Wang]

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@xxxxxxxxx>
---
 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 = {
-- 
2.51.0