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skge: crash on shutdown/suspend

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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>
This commit is contained in:
Stephen Hemminger 2007-05-11 11:21:45 -07:00 committed by Jeff Garzik
parent 549a68c3fe
commit e3b7df17c8
1 changed files with 9 additions and 0 deletions
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9
drivers/net/skge.c
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@ -3802,6 +3802,9 @@ static int skge_suspend(struct pci_dev *pdev, pm_message_t state)
struct skge_hw *hw = pci_get_drvdata(pdev);
int i, err, wol = 0;
if (!hw)
return 0;
err = pci_save_state(pdev);
if (err)
return err;
@ -3830,6 +3833,9 @@ static int skge_resume(struct pci_dev *pdev)
struct skge_hw *hw = pci_get_drvdata(pdev);
int i, err;
if (!hw)
return 0;
err = pci_set_power_state(pdev, PCI_D0);
if (err)
goto out;
@ -3868,6 +3874,9 @@ static void skge_shutdown(struct pci_dev *pdev)
struct skge_hw *hw = pci_get_drvdata(pdev);
int i, wol = 0;
if (!hw)
return;
for (i = 0; i < hw->ports; i++) {
struct net_device *dev = hw->dev[i];
struct skge_port *skge = netdev_priv(dev);