On Fri, Jan 29, 2021 at 07:56:50PM +0530, Srinivas Neeli wrote:
> Add check to see if gpio-width property does not exceed 32.
> If it exceeds then return -EINVAL.
>
> Signed-off-by: Srinivas Neeli <[email protected]>
> Reviewed-by: Linus Walleij <[email protected]>
Acked-by: William Breathitt Gray <[email protected]>
> ---
> Changes in V5:
> -None
> Changes in V4:
> -New patch.
> ---
> drivers/gpio/gpio-xilinx.c | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/drivers/gpio/gpio-xilinx.c b/drivers/gpio/gpio-xilinx.c
> index acd574779ca6..b411d3156e0b 100644
> --- a/drivers/gpio/gpio-xilinx.c
> +++ b/drivers/gpio/gpio-xilinx.c
> @@ -589,6 +589,9 @@ static int xgpio_probe(struct platform_device *pdev)
> if (of_property_read_u32(np, "xlnx,gpio-width", &chip->gpio_width[0]))
> chip->gpio_width[0] = 32;
>
> + if (chip->gpio_width[0] > 32)
> + return -EINVAL;
> +
> spin_lock_init(&chip->gpio_lock);
>
> if (of_property_read_u32(np, "xlnx,is-dual", &is_dual))
> @@ -613,6 +616,8 @@ static int xgpio_probe(struct platform_device *pdev)
> &chip->gpio_width[1]))
> chip->gpio_width[1] = 32;
>
> + if (chip->gpio_width[1] > 32)
> + return -EINVAL;
> }
>
> chip->gc.base = -1;
> --
> 2.7.4
>