RE: [PATCH] vsprintf: Do not break early boot with probing addresses

David Laight
2019-05-14T08:28:21Z

> And I like Steven's "(fault)" idea.
> How about this:
>
> if ptr < PAGE_SIZE -> "(null)"
> if IS_ERR_VALUE(ptr) -> "(fault)"
>
> -ss

Or:
if (ptr < PAGE_SIZE)
return ptr ? "(null+)" : "(null)";
if IS_ERR_VALUE(ptr)
return "(errno)"

David

-
Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK
Registration No: 1397386 (Wales)