On Sat, Nov 14, 2015 at 9:38 AM, Bamvor Jian Zhang <[email protected]> wrote:
> We need to check if number of gpio is positive if there is no > such check in devicetree or acpi or whatever called before > gpiochip_add. > > I suppose that devicetree and acpi do not allow insert gpiochip > with zero number but I do not know if it is enough to ignore > this check in gpiochip_add. > > Signed-off-by: Bamvor Jian Zhang <[email protected]> > + if (chip->ngpio == 0) > + return -EINVAL; Print a warning with chip_err(chip, "tried to insert a GPIO chip with zero lines\n"); Yours, Linus Walleij -- To unsubscribe from this list: send the line "unsubscribe linux-gpio" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
