[PATCH v2] net: ethernet: arc: Fix a potential memory leak if an optional regulator is deferred

[davem@xxxxxxxxxxxxx (David Miller)]

From: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
Date: Sun, 18 Mar 2018 23:59:36 +0100

> If the optional regulator is deferred, we must release some resources.
> They will be re-allocated when the probe function will be called again.
> 
> Fixes: 6eacf31139bf ("ethernet: arc: Add support for Rockchip SoC layer device tree bindings")
> Signed-off-by: Christophe JAILLET <christophe.jaillet at wanadoo.fr>
> ---
> v2: v1 did not compile because of an erroneous variable name. s/ret/err/

Applied and queued up for -stable, thanks.