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author | Fuyun Liang <liangfuyun1@huawei.com> | 2018-05-15 21:20:06 +0300 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2018-05-16 18:33:07 +0300 |
commit | 3e249d3bed677f18a8a9b87b2b9cf1beaeef886c (patch) | |
tree | fb2550e5db87dc23dc41fe29ba14e0ac86713702 /drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c | |
parent | 2312e050f42b0fcdc8a49bd11df1d3015859f2ab (diff) | |
download | linux-3e249d3bed677f18a8a9b87b2b9cf1beaeef886c.tar.xz |
net: hns3: Fix for the null pointer problem occurring when initializing ae_dev failed
When initializing ae_dev failed during loading hclge.ko, the drvdata will
be set to null. When removing hns3.ko, we get a null ae_dev. It causes the
null pointer problem.
This patch removes pci_set_drvdata from error handle of hclge_init_ae_dev
to fix the bug, since pci_set_drvdata has been called in hns3_remove.
Also, we do not need to uninit the ae_dev which is not initialized. And
it may be the one which is initialized failed.
Fixes: 46a3df9f9718 ("net: hns3: Add HNS3 Acceleration Engine & Compatibility Layer Support")
Signed-off-by: Fuyun Liang <liangfuyun1@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c')
-rw-r--r-- | drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c index 343197a57240..c2501b1ec819 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c @@ -5379,7 +5379,7 @@ static int hclge_pci_init(struct hclge_dev *hdev) ret = pci_enable_device(pdev); if (ret) { dev_err(&pdev->dev, "failed to enable PCI device\n"); - goto err_no_drvdata; + return ret; } ret = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)); @@ -5417,8 +5417,6 @@ err_clr_master: pci_release_regions(pdev); err_disable_device: pci_disable_device(pdev); -err_no_drvdata: - pci_set_drvdata(pdev, NULL); return ret; } @@ -5594,7 +5592,6 @@ err_pci_uninit: pci_clear_master(pdev); pci_release_regions(pdev); pci_disable_device(pdev); - pci_set_drvdata(pdev, NULL); out: return ret; } |