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ethtool: fix error handling in linkstate_prepare_data() 

When getting SQI or maximum SQI value fails in linkstate_prepare_data(), we
must not return without calling ethnl_ops_complete(dev) as that could
result in imbalance between ethtool_ops ->begin() and ->complete() calls.

Fixes: 8066021915 ("ethtool: provide UAPI for PHY Signal Quality Index (SQI)")
Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: hongrongxuan <hongrongxuan@huawei.com>
This commit is contained in:
Michal Kubecek 2020-06-25 00:09:08 +02:00 committed by Jianping Liu
parent 820589c748
commit 6d524b1d96
1 changed files with 5 additions and 6 deletions
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11
net/ethtool/linkstate.c
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@ -78,19 +78,18 @@ static int linkstate_prepare_data(const struct ethnl_req_info *req_base,
ret = linkstate_get_sqi(dev);
if (ret < 0 && ret != -EOPNOTSUPP)
return ret;
goto out;
data->sqi = ret;
ret = linkstate_get_sqi_max(dev);
if (ret < 0 && ret != -EOPNOTSUPP)
return ret;
goto out;
data->sqi_max = ret;
ret = 0;
out:
ethnl_ops_complete(dev);
return 0;
return ret;
}
static int linkstate_reply_size(const struct ethnl_req_info *req_base,