[PATCH] bus: sunxi-rsb: Always check register address validity

[Chen-Yu Tsai]

On Sun, Mar 1, 2026 at 10:50 PM Andrey Skvortsov
<andrej.skvortzov at gmail.com> wrote:
>
> From: Samuel Holland <samuel at sholland.org>
>
> The register address was already validated for read operations in
> regmap_sunxi_rsb_reg_read before being truncated to a u8. Write operations
> have the same set of possible addresses, and the address is being truncated
> from u32 to u8 here as well, so the same check is needed.
>
> Signed-off-by: Samuel Holland <samuel at sholland.org>
> Signed-off-by: Andrey Skvortsov <andrej.skvortzov at gmail.com>

Should probably have:

Fixes: d787dcdb9c8f ("bus: sunxi-rsb: Add driver for Allwinner Reduced
Serial Bus")

I will added (via b4) when applying.

Reviewed-by: Chen-Yu Tsai <wens at kernel.org>