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authorAndy Shevchenko <andriy.shevchenko@linux.intel.com>2020-10-21 17:25:28 +0300
committerBartosz Golaszewski <bgolaszewski@baylibre.com>2020-10-26 17:23:33 +0300
commit7b58696d9a8415576317615c63e9899797026f17 (patch)
treee941387d6206474b9086abfff4b0456d0300ef7c /drivers/gpio/gpiolib.h
parent3650b228f83adda7e5ee532e2b90429c03f7b9ec (diff)
downloadlinux-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.h2
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,