From 7f60c64bd0e7262b51faefcce5d8df9d51d84b60 Mon Sep 17 00:00:00 2001 From: "shemminger@linux-foundation.org" Date: Fri, 26 Jan 2007 11:38:36 -0800 Subject: [PATCH] sky2: handle network device allocation failure If alloc_etherdev() failed, then sky2_init_netdev will return NULL, and sky2_probe would end up returning 0 instead of -ENOMEM. Signed-off-by: Stephen Hemminger Signed-off-by: Jeff Garzik --- drivers/net/sky2.c | 20 ++++++++++++++------ 1 file changed, 14 insertions(+), 6 deletions(-) diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c index 947439167493..bf1abf034d8a 100644 --- a/drivers/net/sky2.c +++ b/drivers/net/sky2.c @@ -3339,7 +3339,7 @@ static int __devinit sky2_test_msi(struct sky2_hw *hw) static int __devinit sky2_probe(struct pci_dev *pdev, const struct pci_device_id *ent) { - struct net_device *dev, *dev1 = NULL; + struct net_device *dev; struct sky2_hw *hw; int err, using_dac = 0; @@ -3423,8 +3423,10 @@ static int __devinit sky2_probe(struct pci_dev *pdev, hw->chip_id, hw->chip_rev); dev = sky2_init_netdev(hw, 0, using_dac); - if (!dev) + if (!dev) { + err = -ENOMEM; goto err_out_free_pci; + } if (!disable_msi && pci_enable_msi(pdev) == 0) { err = sky2_test_msi(hw); @@ -3452,13 +3454,19 @@ static int __devinit sky2_probe(struct pci_dev *pdev, sky2_show_addr(dev); - if (hw->ports > 1 && (dev1 = sky2_init_netdev(hw, 1, using_dac))) { - if (register_netdev(dev1) == 0) + if (hw->ports > 1) { + struct net_device *dev1; + + dev1 = sky2_init_netdev(hw, 1, using_dac); + if (!dev1) { + printk(KERN_WARNING PFX + "allocation of second port failed\n"); + } + else if (!(err = register_netdev(dev1))) sky2_show_addr(dev1); else { - /* Failure to register second port need not be fatal */ printk(KERN_WARNING PFX - "register of second port failed\n"); + "register of second port failed (%d)\n", err); hw->dev[1] = NULL; free_netdev(dev1); } -- 2.20.1