On Sun, Mar 22, 2026 at 08:38:30PM +0100, Miguel Ojeda wrote:

>   - The docs on `regulator_get()` don't say it may return `NULL`. It
>     originally that case, but commit be1a50d4eba4 ("regulator: Let
>     drivers know when they use the stub API") changed that without
>     changing the docs.

Callers should never treat NULL any differently to any other non-error
pointer, this is not a value intended for inspection by users.

>     The original sentence (which still is there) says that nothing
>     should look at the value, but then it goes onto say that drivers may
>     actually look at the value.

Having specific handling for NULLs is very much not a preferred
interface, and most things shouldn't.  The caller should probably have
it's own !CONFIG_REGULATOR checks rather than using the return value.