[PATCH v3 1/5] pdump: fix setting rte_errno on mp error

[Morten Brørup]

> From: Stephen Hemminger [mailto:stephen at networkplumber.org]
> Sent: Wednesday, 8 November 2023 19.36
> 
> The response from MP server sets err_value to negative
> on error. The convention for rte_errno is to use a positive
> value on error. This makes errors like duplicate registration
> show up with the correct error value.
> 
> Fixes: 660098d61f57 ("pdump: use generic multi-process channel")
> Signed-off-by: Stephen Hemminger <stephen at networkplumber.org>
> ---

Acked-by:  Morten Brørup <mb at smartsharesystems.com>