github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-07-27 17:47:41 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

gpiolib: initialize return value in gpiochip_set_multiple()

Browse Source 
gpiochip_set_multiple() falls back to setting lines one by one when the
chip does not provide set_multiple(). If the fallback path receives an
empty mask, the loop is skipped and ret is returned without being
initialized.

Initialize ret to 0 so an empty mask is treated as a successful no-op.

Fixes: 9b40731275 ("gpiolib: rework the wrapper around gpio_chip::set_multiple()")
Signed-off-by: Ruoyu Wang <ruoyuw560@gmail.com>
Acked-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com>
Link: https://patch.msgid.link/20260620155319.79994-1-ruoyuw560@gmail.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
This commit is contained in:
Ruoyu Wang 2026-06-20 23:53:19 +08:00 committed by Bartosz Golaszewski
parent 442d60df74
commit 99dfa46bab
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/gpio/gpiolib.c
View File

@ -3803,7 +3803,7 @@ static int gpiochip_set_multiple(struct gpio_chip *gc,
unsigned long *mask, unsigned long *bits)
{
unsigned int i;
int ret;
int ret = 0;
lockdep_assert_held(&gc->gpiodev->srcu);