From: Huazhong Tan tanhuazhong@huawei.com
[ Upstream commit 74354140a579008fd164241e3697d9c37e5b8989 ]
hnae3_register_ae_dev() may fail, and it should return a error code to its caller, so change hnae3_register_ae_dev() return type to int.
Also, when hnae3_register_ae_dev() return error, hns3_probe() should do some error handling and return the error code.
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 Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/ethernet/hisilicon/hns3/hnae3.c | 10 +++++++++- drivers/net/ethernet/hisilicon/hns3/hnae3.h | 2 +- drivers/net/ethernet/hisilicon/hns3/hns3_enet.c | 8 ++++++-- 3 files changed, 16 insertions(+), 4 deletions(-)
diff --git a/drivers/net/ethernet/hisilicon/hns3/hnae3.c b/drivers/net/ethernet/hisilicon/hns3/hnae3.c index 2097f92e14c5c..f98bff60bec37 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hnae3.c +++ b/drivers/net/ethernet/hisilicon/hns3/hnae3.c @@ -239,7 +239,7 @@ EXPORT_SYMBOL(hnae3_unregister_ae_algo); * @ae_dev: the AE device * NOTE: the duplicated name will not be checked */ -void hnae3_register_ae_dev(struct hnae3_ae_dev *ae_dev) +int hnae3_register_ae_dev(struct hnae3_ae_dev *ae_dev) { const struct pci_device_id *id; struct hnae3_ae_algo *ae_algo; @@ -260,6 +260,7 @@ void hnae3_register_ae_dev(struct hnae3_ae_dev *ae_dev)
if (!ae_dev->ops) { dev_err(&ae_dev->pdev->dev, "ae_dev ops are null\n"); + ret = -EOPNOTSUPP; goto out_err; }
@@ -286,8 +287,15 @@ void hnae3_register_ae_dev(struct hnae3_ae_dev *ae_dev) ret); }
+ mutex_unlock(&hnae3_common_lock); + + return 0; + out_err: + list_del(&ae_dev->node); mutex_unlock(&hnae3_common_lock); + + return ret; } EXPORT_SYMBOL(hnae3_register_ae_dev);
diff --git a/drivers/net/ethernet/hisilicon/hns3/hnae3.h b/drivers/net/ethernet/hisilicon/hns3/hnae3.h index f5c7fc9c5e5cc..5e1a7ab06c63b 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hnae3.h +++ b/drivers/net/ethernet/hisilicon/hns3/hnae3.h @@ -513,7 +513,7 @@ struct hnae3_handle { #define hnae3_get_bit(origin, shift) \ hnae3_get_field((origin), (0x1 << (shift)), (shift))
-void hnae3_register_ae_dev(struct hnae3_ae_dev *ae_dev); +int hnae3_register_ae_dev(struct hnae3_ae_dev *ae_dev); void hnae3_unregister_ae_dev(struct hnae3_ae_dev *ae_dev);
void hnae3_unregister_ae_algo(struct hnae3_ae_algo *ae_algo); diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c index 4b4d9de0a6bb5..0788e78747d94 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c @@ -1604,9 +1604,13 @@ static int hns3_probe(struct pci_dev *pdev, const struct pci_device_id *ent) ae_dev->dev_type = HNAE3_DEV_KNIC; pci_set_drvdata(pdev, ae_dev);
- hnae3_register_ae_dev(ae_dev); + ret = hnae3_register_ae_dev(ae_dev); + if (ret) { + devm_kfree(&pdev->dev, ae_dev); + pci_set_drvdata(pdev, NULL); + }
- return 0; + return ret; }
/* hns3_remove - Device removal routine