pio: return error when open is failed

- to prevent explicite null dereferenced, error should be returned when
  open is failed.

Change-Id: I645dec3879d54d43edec1ba52ace84af6c86b180
Signed-off-by: kibak.yoon <kibak.yoon@samsung.com>

diff --git a/src/peripheral_gpio.c b/src/peripheral_gpio.c
index b51c577..e5a3d8c 100644 (file)
--- a/src/peripheral_gpio.c
+++ b/src/peripheral_gpio.c
@@ -69,6 +69,7 @@ int peripheral_gpio_open(int gpio_pin, peripheral_gpio_h *gpio)
                _E("Failed to open the gpio pin, ret : %d", ret);
                free(handle);
                handle = NULL;
+               return ret;
        }
 
        ret = peripheral_interface_gpio_set_initial_direction_into_handle(handle);