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| author | Ruoyu Wang <ruoyuw560@gmail.com> | 2026-06-20 18:53:19 +0300 |
|---|---|---|
| committer | Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com> | 2026-06-22 11:07:11 +0300 |
| commit | 99dfa46baba29513d1094c8f30bc86c6ef88543a (patch) | |
| tree | 464cf4c881e74ae4559c8b24e68c4602c5f15caf | |
| parent | 442d60df742a597dca7cca89a28a4843ce935f09 (diff) | |
| download | linux-99dfa46baba29513d1094c8f30bc86c6ef88543a.tar.xz | |
gpiolib: initialize return value in gpiochip_set_multiple()
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: 9b407312755f ("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>
| -rw-r--r-- | drivers/gpio/gpiolib.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 8a5ff78a1149..e5fb60111151 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -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); |