[PATCH v4 2/6] gpiolib: Move DEFINE_FREE(free_gpio_desc) to driver header

[Marco Scardovi]

Define the free_gpio_desc cleanup handler in include/linux/gpio/driver.h.
This allows drivers to use the __free(free_gpio_desc) attribute for
automated deallocation of GPIO descriptors obtained via
gpiochip_request_own_desc().

Signed-off-by: Marco Scardovi <mscardovi95@xxxxxxxxx>
---
 include/linux/gpio/driver.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h
index 17511434ed07..7ee65b49056d 100644
--- a/include/linux/gpio/driver.h
+++ b/include/linux/gpio/driver.h
@@ -807,6 +807,8 @@ struct gpio_desc *gpiochip_request_own_desc(struct gpio_chip *gc,
 					    enum gpiod_flags dflags);
 void gpiochip_free_own_desc(struct gpio_desc *desc);
 
+DEFINE_FREE(free_gpio_desc, struct gpio_desc *, if (!IS_ERR_OR_NULL(_T)) gpiochip_free_own_desc(_T))
+
 struct gpio_desc *
 gpio_device_get_desc(struct gpio_device *gdev, unsigned int hwnum);
 
-- 
2.54.0