On Thu, 13 Oct 2022 15:04:04 +0300
Matti Vaittinen <mazziesaccount@xxxxxxxxx> wrote:
> The iio_utils uses a digit calculation in order to know length of the
> file name containing a buffer number. The digit calculation does not
> work for number 0.
>
> This leads to allocation of one character too small buffer for the
> file-name when file name contains value '0'. (Eg. buffer0).
>
> Fix digit calculation by returning one digit to be present for number
> '0'.
>
> Fixes: 096f9b862e60 ("tools:iio:iio_utils: implement digit calculation")
> Signed-off-by: Matti Vaittinen <mazziesaccount@xxxxxxxxx>
hi Matti
Makes sense.
Applied to the fixes-togreg branch of iio.git and marked for stable.
Thanks,
Jonathan
> ---
> tools/iio/iio_utils.c | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/tools/iio/iio_utils.c b/tools/iio/iio_utils.c
> index aadee6d34c74..8d35893b2fa8 100644
> --- a/tools/iio/iio_utils.c
> +++ b/tools/iio/iio_utils.c
> @@ -547,6 +547,10 @@ static int calc_digits(int num)
> {
> int count = 0;
>
> + /* It takes a digit to represent zero */
> + if (!num)
> + return 1;
> +
> while (num != 0) {
> num /= 10;
> count++;
>
> base-commit: 4fe89d07dcc2804c8b562f6c7896a45643d34b2f
