> Then we might as well return your regular NULL pointer for zero-length
> allocations as you can't do anything sane with ZERO_SIZE_PTR either.
No, because as was mentioned earlier in the thread, we want code to be
able to handle 0-sized allocations without special cases. The goal is
that code like
buf = kmalloc(nobj * obj_size);
if (buf == NULL)
return -ENOMEM;
should work fine if nobj happens to be 0. But we do want to get an
oops if the code actually tries to read or write *buf.
- R.
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