[PATCH 3/7] docs: gpio: note lineinfo padding must be zero filled

["Iván Ezequiel Rodriguez" <ivanrwcm25@gmail.com>]

GPIO_V2_GET_LINEINFO_IOCTL and GPIO_V2_GET_LINEINFO_WATCH_IOCTL reject
non-zero lineinfo.padding with -EINVAL; align the uapi comment with
gpio_v2_line_request.padding.

Signed-off-by: Iván Ezequiel Rodriguez <ivanrwcm25@gmail.com>
---
 include/uapi/linux/gpio.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/uapi/linux/gpio.h b/include/uapi/linux/gpio.h
index f7cb8ae87df7..5515b718886e 100644
--- a/include/uapi/linux/gpio.h
+++ b/include/uapi/linux/gpio.h
@@ -218,7 +218,7 @@ struct gpio_v2_line_request {
  * gpio_v2_line_flag, such as %GPIO_V2_LINE_FLAG_ACTIVE_LOW,
  * %GPIO_V2_LINE_FLAG_OUTPUT etc, added together
  * @attrs: the configuration attributes associated with the line
- * @padding: reserved for future use
+ * @padding: reserved for future use, must be zero filled
  */
 struct gpio_v2_line_info {
 	char name[GPIO_MAX_NAME_SIZE];
-- 
2.43.0