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Subject[PATCH] net: hinic: Fix warning-hinic_set_vlan_fliter() warn: variable dereferenced before check 'hwdev'
Date
Fix warning, 'hwdev' is checked too late

Fixes: 2acf960e3be6 ("net: hinic: Add support for configuration of rx-vlan-filter by ethtool")
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Closes: https://lore.kernel.org/r/202309112354.pikZCmyk-lkp@intel.com/
Signed-off-by: Cai Huoqing <cai.huoqing@linux.dev>
---
drivers/net/ethernet/huawei/hinic/hinic_port.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/huawei/hinic/hinic_port.c b/drivers/net/ethernet/huawei/hinic/hinic_port.c
index 9406237c461e..bf920c709f82 100644
--- a/drivers/net/ethernet/huawei/hinic/hinic_port.c
+++ b/drivers/net/ethernet/huawei/hinic/hinic_port.c
@@ -450,8 +450,8 @@ int hinic_set_rx_vlan_offload(struct hinic_dev *nic_dev, u8 en)
int hinic_set_vlan_fliter(struct hinic_dev *nic_dev, u32 en)
{
struct hinic_hwdev *hwdev = nic_dev->hwdev;
- struct hinic_hwif *hwif = hwdev->hwif;
- struct pci_dev *pdev = hwif->pdev;
+ struct hinic_hwif *hwif;
+ struct pci_dev *pdev;
struct hinic_vlan_filter vlan_filter;
u16 out_size = sizeof(vlan_filter);
int err;
@@ -459,6 +459,9 @@ int hinic_set_vlan_fliter(struct hinic_dev *nic_dev, u32 en)
if (!hwdev)
return -EINVAL;

+ hwif = hwdev->hwif;
+ pdev = hwif->pdev;
+
vlan_filter.func_idx = HINIC_HWIF_FUNC_IDX(hwif);
vlan_filter.enable = en;

--
2.34.1
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