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path: root/drivers/gpio/gpiolib-legacy.c
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Diffstat (limited to 'drivers/gpio/gpiolib-legacy.c')
-rw-r--r--drivers/gpio/gpiolib-legacy.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpio/gpiolib-legacy.c b/drivers/gpio/gpiolib-legacy.c
index f421208ddbdd..087fe3227e35 100644
--- a/drivers/gpio/gpiolib-legacy.c
+++ b/drivers/gpio/gpiolib-legacy.c
@@ -22,6 +22,9 @@ EXPORT_SYMBOL_GPL(gpio_free);
* @label: a literal description string of this GPIO
*
* **DEPRECATED** This function is deprecated and must not be used in new code.
+ *
+ * Returns:
+ * 0 on success, or negative errno on failure.
*/
int gpio_request_one(unsigned gpio, unsigned long flags, const char *label)
{