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>
diff --git a/drivers/gpio/gpiolib.h b/drivers/gpio/gpiolib.h
index b674b5b..16bc573 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,