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skge: crash on shutdown/suspend
If device is not fails during module startup (like unsupported chip version) then driver would crash dereferencing a null pointer, on shutdown or suspend/resume. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
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1 changed files with 9 additions and 0 deletions
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@ -3802,6 +3802,9 @@ static int skge_suspend(struct pci_dev *pdev, pm_message_t state)
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struct skge_hw *hw = pci_get_drvdata(pdev);
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int i, err, wol = 0;
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if (!hw)
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return 0;
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err = pci_save_state(pdev);
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if (err)
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return err;
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@ -3830,6 +3833,9 @@ static int skge_resume(struct pci_dev *pdev)
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struct skge_hw *hw = pci_get_drvdata(pdev);
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int i, err;
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if (!hw)
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return 0;
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err = pci_set_power_state(pdev, PCI_D0);
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if (err)
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goto out;
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@ -3868,6 +3874,9 @@ static void skge_shutdown(struct pci_dev *pdev)
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struct skge_hw *hw = pci_get_drvdata(pdev);
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int i, wol = 0;
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if (!hw)
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return;
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for (i = 0; i < hw->ports; i++) {
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struct net_device *dev = hw->dev[i];
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struct skge_port *skge = netdev_priv(dev);
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