diff options
| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2020-10-21 17:25:28 +0300 |
|---|---|---|
| committer | Bartosz Golaszewski <bgolaszewski@baylibre.com> | 2020-10-26 17:23:33 +0300 |
| commit | 7b58696d9a8415576317615c63e9899797026f17 (patch) | |
| tree | e941387d6206474b9086abfff4b0456d0300ef7c /drivers/gpio/gpiolib.h | |
| parent | 3650b228f83adda7e5ee532e2b90429c03f7b9ec (diff) | |
| download | linux-7b58696d9a8415576317615c63e9899797026f17.tar.xz | |
gpiolib: Extract gpiod_not_found() helper
Several places in the code are using same idiom, i.e.
IS_ERR(desc) && PTR_ERR(desc) == -ENOENT
which meaning is GPIO description is not found.
For better readability extract gpiod_not_found() helper and use it.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Diffstat (limited to 'drivers/gpio/gpiolib.h')
| -rw-r--r-- | drivers/gpio/gpiolib.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpio/gpiolib.h b/drivers/gpio/gpiolib.h index b674b5bb980e..16bc5731673c 100644 --- a/drivers/gpio/gpiolib.h +++ b/drivers/gpio/gpiolib.h @@ -130,6 +130,8 @@ struct gpio_desc { #endif }; +#define gpiod_not_found(desc) (IS_ERR(desc) && PTR_ERR(desc) == -ENOENT) + int gpiod_request(struct gpio_desc *desc, const char *label); void gpiod_free(struct gpio_desc *desc); int gpiod_configure_flags(struct gpio_desc *desc, const char *con_id, |