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[netdrvr] Fix register_netdev() races in older ISA net drivers

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This commit is contained in:
2005-05-12 20:11:55 -04:00
committed by Jeff Garzik
parent 88d7bd8cb9
commit b1fc5505e0
21 changed files with 156 additions and 228 deletions
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21
drivers/net/eepro.c
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@@ -600,12 +600,7 @@ struct net_device * __init eepro_probe(int unit)
err = do_eepro_probe(dev);
if (err)
goto out;
err = register_netdev(dev);
if (err)
goto out1;
return dev;
out1:
release_region(dev->base_addr, EEPRO_IO_EXTENT);
out:
free_netdev(dev);
return ERR_PTR(err);
@@ -758,6 +753,7 @@ static int __init eepro_probe1(struct net_device *dev, int autoprobe)
int i;
struct eepro_local *lp;
int ioaddr = dev->base_addr;
int err;
/* Grab the region so we can find another board if autoIRQ fails. */
if (!request_region(ioaddr, EEPRO_IO_EXTENT, DRV_NAME)) {
@@ -873,10 +869,16 @@ static int __init eepro_probe1(struct net_device *dev, int autoprobe)
/* reset 82595 */
eepro_reset(ioaddr);
err = register_netdev(dev);
if (err)
goto err;
return 0;
exit:
err = -ENODEV;
err:
release_region(dev->base_addr, EEPRO_IO_EXTENT);
return -ENODEV;
return err;
}
/* Open/initialize the board. This is called (in the current kernel)
@@ -1834,11 +1836,8 @@ init_module(void)
dev->irq = irq[i];
if (do_eepro_probe(dev) == 0) {
if (register_netdev(dev) == 0) {
dev_eepro[n_eepro++] = dev;
continue;
}
release_region(dev->base_addr, EEPRO_IO_EXTENT);
dev_eepro[n_eepro++] = dev;
continue;
}
free_netdev(dev);
break;