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 <shemminger@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c
index 9474391..bf1abf0 100644
--- a/drivers/net/sky2.c
+++ b/drivers/net/sky2.c
@@ -3339,7 +3339,7 @@
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 @@
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 @@
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);
}