diff options
| -rw-r--r-- | drivers/gpio/gpiolib.c | 2 | ||||
| -rw-r--r-- | include/linux/gpio/driver.h | 3 |
2 files changed, 4 insertions, 1 deletions
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index fea0cdec0b26..a98025b0ecf7 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -2349,6 +2349,8 @@ static int gpiod_request_commit(struct gpio_desc *desc, const char *label) ret = guard.gc->request(guard.gc, offset); else ret = -EINVAL; + if (ret > 0) + ret = -EBADE; if (ret) goto out_clear_bit; } diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h index 10544f4a03e5..ce22c072337c 100644 --- a/include/linux/gpio/driver.h +++ b/include/linux/gpio/driver.h @@ -329,7 +329,8 @@ struct gpio_irq_chip { * @fwnode: optional fwnode providing this controller's properties * @owner: helps prevent removal of modules exporting active GPIOs * @request: optional hook for chip-specific activation, such as - * enabling module power and clock; may sleep + * enabling module power and clock; may sleep; must return 0 on success + * or negative error number on failure * @free: optional hook for chip-specific deactivation, such as * disabling module power and clock; may sleep * @get_direction: returns direction for signal "offset", 0=out, 1=in, |