tree da4cc6c3f08865c95204180457d962cd7c446739
parent badd8e3149064570b08de8ffe37a18d387fbdca3
author Yunsheng Lin <linyunsheng@huawei.com> 1545825106 +0800
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1560248511 +0200

ethtool: check the return value of get_regs_len

commit f9fc54d313fab2834f44f516459cdc8ac91d797f upstream.

The return type for get_regs_len in struct ethtool_ops is int,
the hns3 driver may return error when failing to get the regs
len by sending cmd to firmware.

Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Cc: Michal Kubecek <mkubecek@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>