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net: chelsio: cxgb4vf: Fix an error code in cxgb4vf_pci_probe() 

During the process of driver probing, probe function should return < 0
for failure, otherwise kernel will treat value == 0 as success.

Therefore, we should set err to -EINVAL when
adapter->registered_device_map is NULL. Otherwise kernel will assume
that driver has been successfully probed and will cause unexpected
errors.

Signed-off-by: Zheyu Ma <zheyuma97@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Zheyu Ma 2021-11-23 02:21:50 +00:00 committed by David S. Miller
parent c75a9ad436
commit b82d71c0f8
1 changed files with 1 additions and 0 deletions
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1
drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c
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@ -3196,6 +3196,7 @@ static int cxgb4vf_pci_probe(struct pci_dev *pdev,
}
if (adapter->registered_device_map == 0) {
dev_err(&pdev->dev, "could not register any net devices\n");
err = -EINVAL;
goto err_disable_interrupts;
}