> so if I understand this correctly, it probably means, that this approach with
> modified of_get_mac_address is dead end as current of_get_mac_address users
> don't expect and handle possible -EPROBE_DEFER error, so I would need to
> change all the current users, which is nonsense.
Hi Petr
I would not say it is dead, it just needs a bit more work.
The current users should always be checking for a NULL pointer. You
just need to change that to !IS_ERR(). You can then return
ERR_PTR(-PROBE_DEFER) from the NVMEM operation.
And i agree, wrapping this all up inside of_get_mac_address() is the
correct way to do this.
Andrew
