Re: [PATCH] [v2] iio: proximity: pulsedlight: Fix rumtime PM imbalance on error

[Andy Shevchenko]

On Mon, Apr 12, 2021 at 8:32 AM Dinghao Liu <dinghao.liu@xxxxxxxxxx> wrote:
>
> When lidar_write_control() fails, a pairing PM usage counter
> decrement is needed to keep the counter balanced.

You forgot to collect given tags.

> Fixes: 4ac4e086fd8c5 ("iio: pulsedlight-lidar-lite: add runtime PM")
> Signed-off-by: Dinghao Liu <dinghao.liu@xxxxxxxxxx>
> ---
>
> Changelog:
>
> v2: - Add the fix tag.
> ---
>  drivers/iio/proximity/pulsedlight-lidar-lite-v2.c | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/drivers/iio/proximity/pulsedlight-lidar-lite-v2.c b/drivers/iio/proximity/pulsedlight-lidar-lite-v2.c
> index c685f10b5ae4..cc206bfa09c7 100644
> --- a/drivers/iio/proximity/pulsedlight-lidar-lite-v2.c
> +++ b/drivers/iio/proximity/pulsedlight-lidar-lite-v2.c
> @@ -160,6 +160,7 @@ static int lidar_get_measurement(struct lidar_data *data, u16 *reg)
>         ret = lidar_write_control(data, LIDAR_REG_CONTROL_ACQUIRE);
>         if (ret < 0) {
>                 dev_err(&client->dev, "cannot send start measurement command");
> +               pm_runtime_put_noidle(&client->dev);
>                 return ret;
>         }
>
> --
> 2.17.1
>


-- 
With Best Regards,
Andy Shevchenko