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From: Dan Carpenter <error27@gmail.com>
To: cai.huoqing@linux.dev
Cc: kernel-janitors@vger.kernel.org
Subject: [bug report] net: hinic: Add support for configuration of rx-vlan-filter by ethtool
Date: Fri, 18 Nov 2022 14:20:55 +0300	[thread overview]
Message-ID: <Y3dql2JP3jyTBPYs@kili> (raw)

Hello Cai Huoqing,

This is a semi-automatic email about new static checker warnings.

The patch 2acf960e3be6: "net: hinic: Add support for configuration of
rx-vlan-filter by ethtool" from Nov 3, 2022, leads to the following
Smatch complaint:

    drivers/net/ethernet/huawei/hinic/hinic_port.c:459 hinic_set_vlan_fliter()
                                                                      ^^^^
This should be "filter" instead of "fliter" (swap the li).

    warn: variable dereferenced before check 'hwdev' (see line 453)

drivers/net/ethernet/huawei/hinic/hinic_port.c
   452		struct hinic_hwdev *hwdev = nic_dev->hwdev;
   453		struct hinic_hwif *hwif = hwdev->hwif;
                                          ^^^^^^^^^^^
Dereference.

   454		struct pci_dev *pdev = hwif->pdev;
   455		struct hinic_vlan_filter vlan_filter;
   456		u16 out_size = sizeof(vlan_filter);
   457		int err;
   458	
   459		if (!hwdev)
                    ^^^^^^
Checked too late.

   460			return -EINVAL;
   461	

regards,
dan carpenter

                 reply	other threads:[~2022-11-18 11:21 UTC|newest]

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