diff options
| author | Huazhong Tan <tanhuazhong@huawei.com> | 2019-04-04 11:17:56 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-04-04 20:20:39 +0300 |
| commit | c4e401e5a934bb0798ebbba98e08dab129695eff (patch) | |
| tree | 6c96e297ecdcd0b6ee54123c68125cceb3eac243 /drivers | |
| parent | 389775a6605e040dddea21a778a88eaaa57c068d (diff) | |
| download | linux-c4e401e5a934bb0798ebbba98e08dab129695eff.tar.xz | |
net: hns3: check resetting status in hns3_get_stats()
hns3_get_stats() should check the resetting status firstly,
since the device will be reinitialized when resetting. If the
reset has not completed, the hns3_get_stats() may access
invalid memory.
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c b/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c index fc82d0e11546..59ef272297ab 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c @@ -483,6 +483,11 @@ static void hns3_get_stats(struct net_device *netdev, struct hnae3_handle *h = hns3_get_handle(netdev); u64 *p = data; + if (hns3_nic_resetting(netdev)) { + netdev_err(netdev, "dev resetting, could not get stats\n"); + return; + } + if (!h->ae_algo->ops->get_stats || !h->ae_algo->ops->update_stats) { netdev_err(netdev, "could not get any statistics\n"); return; |