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net: hns3: add client node validity judgment

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HNS3 driver can only unregister client which included in hnae3_client_list.
This patch adds the client node validity judgment.

Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Peng Li 2019-09-05 21:31:39 +08:00 committed by David S. Miller
parent 525a294e60
commit b7cf22b74a
1 changed files with 16 additions and 0 deletions
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16
drivers/net/ethernet/hisilicon/hns3/hnae3.c
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@ -138,12 +138,28 @@ EXPORT_SYMBOL(hnae3_register_client);
void hnae3_unregister_client(struct hnae3_client *client)
{
struct hnae3_client *client_tmp;
struct hnae3_ae_dev *ae_dev;
bool existed = false;
if (!client)
return;
mutex_lock(&hnae3_common_lock);
list_for_each_entry(client_tmp, &hnae3_client_list, node) {
if (client_tmp->type == client->type) {
existed = true;
break;
}
}
if (!existed) {
mutex_unlock(&hnae3_common_lock);
pr_err("client %s does not exist!\n", client->name);
return;
}
/* un-initialize the client on every matched port */
list_for_each_entry(ae_dev, &hnae3_ae_dev_list, node) {
hnae3_uninit_client_instance(client, ae_dev);