err varibale will be set everytime, when code gets
into this path. This check will just slowdown the execution
and that's all.

Fixes: 0dd07709 ("NET: Add ezchip ethernet driver")
Signed-off-by: NPavel Skripkin <paskripkin@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>