[PATCH] gpio: gpiolib: fix refcount imbalance in gpiochip_setup_dev()

[Joe Hattori <joe@xxxxxxxxxxxxxxxxxxxxx>]

In gpiochip_setup_dev(), the refcount incremented in device_initialize()
is not decremented in the error path. Fix it by calling put_device().

Fixes: aab5c6f20023 ("gpio: set device type for GPIO chips")
Signed-off-by: Joe Hattori <joe@xxxxxxxxxxxxxxxxxxxxx>
---
 drivers/gpio/gpiolib.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 679ed764cb14..6b2d50370ab7 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -800,7 +800,7 @@ static int gpiochip_setup_dev(struct gpio_device *gdev)
 
 	ret = gcdev_register(gdev, gpio_devt);
 	if (ret)
-		return ret;
+		goto err_put_device;
 
 	ret = gpiochip_sysfs_register(gdev);
 	if (ret)
@@ -813,6 +813,8 @@ static int gpiochip_setup_dev(struct gpio_device *gdev)
 
 err_remove_device:
 	gcdev_unregister(gdev);
+err_put_device:
+	put_device(&gdev->dev);
 	return ret;
 }
 
-- 
2.34.1