Re: [PATCH] iio temperature/mlx90632: silence a static checker warning

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



OK, makes sense.

Acked-by: Crt Mori <cmo@xxxxxxxxxxx>

On 22 February 2018 at 10:14, Dan Carpenter <dan.carpenter@xxxxxxxxxx> wrote:
>
> This shouldn't affect runtime at all, but Smatch complains that we
> should check if mlx90632_read_ambient_raw() otherwise we
> "ambient_new_raw" can be uninitialized.
>
>     drivers/iio/temperature/mlx90632.c:509 mlx90632_calc_ambient_dsp105()
>     error: uninitialized symbol 'ambient_new_raw'.
>
> Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
>
> diff --git a/drivers/iio/temperature/mlx90632.c b/drivers/iio/temperature/mlx90632.c
> index d695ab97d27f..9851311aa3fd 100644
> --- a/drivers/iio/temperature/mlx90632.c
> +++ b/drivers/iio/temperature/mlx90632.c
> @@ -506,6 +506,8 @@ static int mlx90632_calc_ambient_dsp105(struct mlx90632_data *data, int *val)
>
>         ret = mlx90632_read_ambient_raw(data->regmap, &ambient_new_raw,
>                                         &ambient_old_raw);
> +       if (ret < 0)
> +               return ret;
>         *val = mlx90632_calc_temp_ambient(ambient_new_raw, ambient_old_raw,
>                                           PT, PR, PG, PO, Gb);
>         return ret;
--
To unsubscribe from this list: send the line "unsubscribe linux-iio" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Index of Archives]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Input]     [Linux Kernel]     [Linux SCSI]     [X.org]

  Powered by Linux