[PATCH v2 1/6] gpio: of: clear OF_POPULATED on hog nodes in remove path

[Bartosz Golaszewski]

The previously set OF_POPULATED flag should be cleared on the hog nodes
when removing the chip.

Cc: stable@xxxxxxxxxxxxxxx
Fixes: 63636d956c455 ("gpio: of: Add DT overlay support for GPIO hogs")
Acked-by: Linus Walleij <linusw@xxxxxxxxxx>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxxxxxxxx>
---
 drivers/gpio/gpiolib-of.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c
index ef1ac68b94b78f09e768cc740e893632b8817505..08b7b662512b825086cd70440be98b59befc3ffe 100644
--- a/drivers/gpio/gpiolib-of.c
+++ b/drivers/gpio/gpiolib-of.c
@@ -1210,7 +1210,14 @@ int of_gpiochip_add(struct gpio_chip *chip)
 
 void of_gpiochip_remove(struct gpio_chip *chip)
 {
-	of_node_put(dev_of_node(&chip->gpiodev->dev));
+	struct device_node *np = dev_of_node(&chip->gpiodev->dev);
+
+	for_each_child_of_node_scoped(np, child) {
+		if (of_property_present(child, "gpio-hog"))
+			of_node_clear_flag(child, OF_POPULATED);
+	}
+
+	of_node_put(np);
 }
 
 bool of_gpiochip_instance_match(struct gpio_chip *gc, unsigned int index)

-- 
2.47.3