This patch fixes the missing device reference release-after-use in
the positive leg of the roce reset API of the HNS DSAF.

Fixes: c969c6e7 ("net: hns: Fix object reference leaks in hns_dsaf_roce_reset()")
Reported-by: John Garry <john.garry@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>