diff options
Diffstat (limited to 'drivers/net/ethernet')
| -rw-r--r-- | drivers/net/ethernet/hisilicon/hns3/hnae3.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/net/ethernet/hisilicon/hns3/hnae3.c b/drivers/net/ethernet/hisilicon/hns3/hnae3.c index 50011aafbae4..9f5349b9243f 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hnae3.c +++ b/drivers/net/ethernet/hisilicon/hns3/hnae3.c @@ -32,6 +32,9 @@ static bool hnae3_client_match(enum hnae3_client_type client_type, void hnae3_set_client_init_flag(struct hnae3_client *client, struct hnae3_ae_dev *ae_dev, int inited) { + if (!client || !ae_dev) + return; + switch (client->type) { case HNAE3_CLIENT_KNIC: hnae3_set_bit(ae_dev->flag, HNAE3_KNIC_CLIENT_INITED_B, inited); @@ -109,6 +112,9 @@ int hnae3_register_client(struct hnae3_client *client) struct hnae3_ae_dev *ae_dev; int ret = 0; + if (!client) + return -ENODEV; + mutex_lock(&hnae3_common_lock); /* one system should only have one client for every type */ list_for_each_entry(client_tmp, &hnae3_client_list, node) { @@ -141,6 +147,9 @@ void hnae3_unregister_client(struct hnae3_client *client) { struct hnae3_ae_dev *ae_dev; + if (!client) + return; + mutex_lock(&hnae3_common_lock); /* un-initialize the client on every matched port */ list_for_each_entry(ae_dev, &hnae3_ae_dev_list, node) { @@ -163,6 +172,9 @@ void hnae3_register_ae_algo(struct hnae3_ae_algo *ae_algo) struct hnae3_client *client; int ret = 0; + if (!ae_algo) + return; + mutex_lock(&hnae3_common_lock); list_add_tail(&ae_algo->node, &hnae3_ae_algo_list); @@ -209,6 +221,9 @@ void hnae3_unregister_ae_algo(struct hnae3_ae_algo *ae_algo) struct hnae3_ae_dev *ae_dev; struct hnae3_client *client; + if (!ae_algo) + return; + mutex_lock(&hnae3_common_lock); /* Check if there are matched ae_dev */ list_for_each_entry(ae_dev, &hnae3_ae_dev_list, node) { @@ -245,6 +260,9 @@ int hnae3_register_ae_dev(struct hnae3_ae_dev *ae_dev) struct hnae3_client *client; int ret = 0; + if (!ae_dev) + return -ENODEV; + mutex_lock(&hnae3_common_lock); list_add_tail(&ae_dev->node, &hnae3_ae_dev_list); @@ -307,6 +325,9 @@ void hnae3_unregister_ae_dev(struct hnae3_ae_dev *ae_dev) struct hnae3_ae_algo *ae_algo; struct hnae3_client *client; + if (!ae_dev) + return; + mutex_lock(&hnae3_common_lock); /* Check if there are matched ae_algo */ list_for_each_entry(ae_algo, &hnae3_ae_algo_list, node) { |