Re: [PATCH v2 2/3] tools: gpio: validate arguments in gpiotools_request_line

[007]

OK, I will redo it, thanks.

Best regards,

Zhang Xiaolei

On 5/5/26 00:13, Maxwell Doose wrote:
> On Mon, May 4, 2026 at 2:56 AM Zhang Xiaolei <zxl434815272@xxxxxxxxx> wrote:
> > Add validation for input pointers and number of lines.
> Perhaps make the commit message more descriptive?
>
> > Signed-off-by: Zhang Xiaolei <zxl434815272@xxxxxxxxx>
> > ---
> >   tools/gpio/gpio-utils.c | 6 ++++++
> >   1 file changed, 6 insertions(+)
> >
> > diff --git a/tools/gpio/gpio-utils.c b/tools/gpio/gpio-utils.c
> > index 176bccfcccb0..930a38fe7911 100644
> > --- a/tools/gpio/gpio-utils.c
> > +++ b/tools/gpio/gpio-utils.c
> > @@ -65,6 +65,12 @@ int gpiotools_request_line(const char *device_name, unsigned int *lines,
> >          int i;
> >          int ret;
> >
> > +       if (!device_name || !lines || !config || !consumer || !num_lines)
> > +               return -EINVAL;
> > +
> > +       if (num_lines > GPIO_V2_LINES_MAX)
> > +               return -EINVAL;
> > +
> I'm wondering if we might want to use ERANGE here for the num_lines >
> GPIO_V2_LINES_MAX check instead of EINVAL.
>
> best regards,
> maxwell