[PATCH 3/3] gpiolib: add __must_check attribute to the gpiochip_add function

[Anton Vorontsov]

Signed-off-by: Anton Vorontsov <avorontsov@xxxxxxxxxxxxx>
---
 drivers/gpio/gpiolib.c     |    2 +-
 include/asm-generic/gpio.h |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 2149e0c..851eb4d 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -161,7 +161,7 @@ static int gpiochip_find_base(int ngpio)
  * because the chip->base is invalid or already associated with a
  * different chip.  Otherwise it returns zero as a success code.
  */
-int gpiochip_add(struct gpio_chip *chip)
+int __must_check gpiochip_add(struct gpio_chip *chip)
 {
 	unsigned long	flags;
 	int		status = 0;
diff --git a/include/asm-generic/gpio.h b/include/asm-generic/gpio.h
index 20f5d67..51ed230 100644
--- a/include/asm-generic/gpio.h
+++ b/include/asm-generic/gpio.h
@@ -77,7 +77,7 @@ extern const char *gpiochip_is_requested(struct gpio_chip *chip,
 extern int __must_check gpiochip_reserve(int start, int ngpio);
 
 /* add/remove chips */
-extern int gpiochip_add(struct gpio_chip *chip);
+extern int __must_check gpiochip_add(struct gpio_chip *chip);
 extern int __must_check gpiochip_remove(struct gpio_chip *chip);
 
 
-- 
1.5.2.2
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