diff mbox series

gpio: uapi: Improve phrasing around arrays representing empty strings

Message ID 20200303200149.27370-1-j.neuschaefer@gmx.net
State New
Headers show
Series gpio: uapi: Improve phrasing around arrays representing empty strings | expand

Commit Message

J. Neuschäfer March 3, 2020, 8:01 p.m. UTC 
Character arrays can be considered empty strings (if they are
immediately terminated), but they cannot be NULL.

Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
---
 include/uapi/linux/gpio.h | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

--
2.20.1

Comments

Bartosz Golaszewski March 4, 2020, 2:11 p.m. UTC | #1 
wt., 3 mar 2020 o 21:06 Jonathan Neuschäfer <j.neuschaefer@gmx.net> napisał(a):
>
> Character arrays can be considered empty strings (if they are
> immediately terminated), but they cannot be NULL.
>
> Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>

Makes sense, patch applied!

Bart
diff mbox series

Patch

diff --git a/include/uapi/linux/gpio.h b/include/uapi/linux/gpio.h
index 799cf823d493..cd88599ea3ea 100644
--- a/include/uapi/linux/gpio.h
+++ b/include/uapi/linux/gpio.h
@@ -18,7 +18,7 @@ 
  * struct gpiochip_info - Information about a certain GPIO chip
  * @name: the Linux kernel name of this GPIO chip
  * @label: a functional name for this GPIO chip, such as a product
- * number, may be NULL
+ * number, may be empty
  * @lines: number of GPIO lines on this chip
  */
 struct gpiochip_info {
@@ -44,10 +44,10 @@  struct gpiochip_info {
  * @flags: various flags for this line
  * @name: the name of this GPIO line, such as the output pin of the line on the
  * chip, a rail or a pin header name on a board, as specified by the gpio
- * chip, may be NULL
+ * chip, may be empty
  * @consumer: a functional name for the consumer of this GPIO line as set by
- * whatever is using it, will be NULL if there is no current user but may
- * also be NULL if the consumer doesn't set this up
+ * whatever is using it, will be empty if there is no current user but may
+ * also be empty if the consumer doesn't set this up
  */
 struct gpioline_info {
 	__u32 line_offset;