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skge: Make sure both ports initialize correctly

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If allocation of the second ports fails, make sure that hw->ports
 is not 2 otherwise we'll crash trying to access the second port.

This fix is copied from a similar fix in the sky2 driver (ca519274...),
but is untested, as I don't have a skge card.

Signed-off-by: Mike McCormack <mikem@ring3k.org>
Acked-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Mike McCormack 2009-09-23 03:50:36 +00:00 • committed by David S. Miller
commit f1914226e1
1 changed files with 6 additions and 3 deletions
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9
drivers/net/skge.c
View file

@ -3982,14 +3982,17 @@ static int __devinit skge_probe(struct pci_dev *pdev,
}
skge_show_addr(dev);
if (hw->ports > 1 && (dev1 = skge_devinit(hw, 1, using_dac))) {
if (register_netdev(dev1) == 0)
if (hw->ports > 1) {
dev1 = skge_devinit(hw, 1, using_dac);
if (dev1 && register_netdev(dev1) == 0)
skge_show_addr(dev1);
else {
/* Failure to register second port need not be fatal */
dev_warn(&pdev->dev, "register of second port failed\n");
hw->dev[1] = NULL;
free_netdev(dev1);
hw->ports = 1;
if (dev1)
free_netdev(dev1);
}
}
pci_set_drvdata(pdev, hw);