linux-kernel - Re: [PATCH 1/3] iio: addac: ad74413r: use ngpio size when iterating over mask

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Message-ID: <CAHp75VdsJn0zn8bvS+3h4zaTKKQnyHV7P2BAkyP2EHX=kbmERA@mail.gmail.com>
Date:   Sun, 9 Jan 2022 14:07:27 +0200
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     Cosmin Tanislav <demonsingur@...il.com>
Cc:     cosmin.tanislav@...log.com, Lars-Peter Clausen <lars@...afoo.de>,
        Michael Hennerich <Michael.Hennerich@...log.com>,
        Rob Herring <robh+dt@...nel.org>,
        linux-iio <linux-iio@...r.kernel.org>,
        devicetree <devicetree@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        Bartosz Golaszewski <brgl@...ev.pl>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>
Subject: Re: [PATCH 1/3] iio: addac: ad74413r: use ngpio size when iterating
 over mask

On Fri, Jan 7, 2022 at 7:34 AM Cosmin Tanislav <demonsingur@...il.com> wrote:
>
> ngpio is the actual number of GPIOs handled by the GPIO chip,
> as opposed to the max number of GPIOs.

Fixes?

> Signed-off-by: Cosmin Tanislav <cosmin.tanislav@...log.com>
> ---
>  drivers/iio/addac/ad74413r.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/iio/addac/ad74413r.c b/drivers/iio/addac/ad74413r.c
> index 5271073bb74e..6ea3cd933d05 100644
> --- a/drivers/iio/addac/ad74413r.c
> +++ b/drivers/iio/addac/ad74413r.c
> @@ -288,7 +288,7 @@ static void ad74413r_gpio_set_multiple(struct gpio_chip *chip,
>         unsigned int offset = 0;
>         int ret;
>
> -       for_each_set_bit_from(offset, mask, AD74413R_CHANNEL_MAX) {
> +       for_each_set_bit_from(offset, mask, chip->ngpio) {
>                 unsigned int real_offset = st->gpo_gpio_offsets[offset];
>
>                 ret = ad74413r_set_gpo_config(st, real_offset,
> @@ -334,7 +334,7 @@ static int ad74413r_gpio_get_multiple(struct gpio_chip *chip,
>         if (ret)
>                 return ret;
>
> -       for_each_set_bit_from(offset, mask, AD74413R_CHANNEL_MAX) {
> +       for_each_set_bit_from(offset, mask, chip->ngpio) {
>                 unsigned int real_offset = st->comp_gpio_offsets[offset];
>
>                 if (val & BIT(real_offset))
> --
> 2.34.1
>


-- 
With Best Regards,
Andy Shevchenko