[PATCH] tools: fdtgrep: Use unsigned chars for arrays

[Simon Glass]

On Wed, 10 Feb 2021 at 17:43, Samuel Dionne-Riel <samuel at dionne-riel.com> wrote:
>
> Otherwise, values over 127 end up prefixed with ffffff.
>
> Signed-off-by: Samuel Dionne-Riel <samuel at dionne-riel.com>
> Cc: Simon Glass <sjg at chromium.org>
> ---
>
> Minimal reproduction:
>
> ```
> // repro.dts
> /dts-v1/;
>
> / {
>     ra = [ 7f ];
>     rb = [ 80 ];
> };
> ```
>
> Steps used to compile:
>
>  $ dtc repro.dts > repro.dtb
>
> Without the fix:
>
>  $ fdtgrep --include-node / repro.dtb
> / {
>     ra = [7f];
>     rb = [ffffff80];
> };
>
> With the fix:
>
>  $ fdtgrep --include-node / repro.dtb
> / {
>     ra = [7f];
>     rb = [80];
> };
>
> ---
>
>  tools/fdtgrep.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Reviewed-by: Simon Glass <sjg at chromium.org>