From: Jakub Kicinski <k...@kernel.org>
Date: Tue, 28 Jul 2020 16:15:07 -0700
> Number of .dumpit functions try to ignore -EOPNOTSUPP errors.
> Recent change missed that, and started reporting all errors
> but -EMSGSIZE back from dumps. This leads to situation like
> this:
>
> $ devlink dev info
> devlink answers: Operation not supported
>
> Dump should not report an error just because the last device
> to be queried could not provide an answer.
>
> To fix this and avoid similar confusion make sure we clear
> err properly, and not leave it set to an error if we don't
> terminate the iteration.
>
> Fixes: c62c2cfb801b ("net: devlink: don't ignore errors during dumpit")
> Signed-off-by: Jakub Kicinski <k...@kernel.org>
Applied and queued up for -stable, thanks.
