[PATCH] lmb: change the return code on lmb_alloc_addr()

[Ben Schneider]

> Thanks Ben.

Happy to help. In case the context is useful, I wound up here
because I use U-Boot to load systemd-boot which then, in turn, loads
the kernel. Unlike GRUB, systemd-boot does not provide decompression
and recommends using EFI_ZBOOT[0].

Perhaps it is uncommon to: a) have the first good memory entry
start at zero, b) use systemd-boot instead of GRUB, c) use the
compressed kernel on aarch64, d) all of the above? :)

Thanks for everyone's help!

Ben

[0] https://github.com/systemd/systemd/issues/23788