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author <herbert@gondor.apana.org.au>2005-05-12 20:11:55 -0400
committerJeff Garzik <jgarzik@pobox.com>2005-05-12 20:11:55 -0400
commitb1fc5505e0dbcc3fd7c75bfe6bee39ec50080963 (patch)
treef8c0bb679dc8e72816e16820c3dbcccf924097eb /drivers/net/ac3200.c
parent88d7bd8cb9eb8d64bf7997600b0d64f7834047c5 (diff)
downloadlwn-b1fc5505e0dbcc3fd7c75bfe6bee39ec50080963.tar.gz
lwn-b1fc5505e0dbcc3fd7c75bfe6bee39ec50080963.zip
[netdrvr] Fix register_netdev() races in older ISA net drivers
Diffstat (limited to 'drivers/net/ac3200.c')
-rw-r--r--drivers/net/ac3200.c19
1 files changed, 9 insertions, 10 deletions
diff --git a/drivers/net/ac3200.c b/drivers/net/ac3200.c
index 24fba36b5c1d..91791ba37769 100644
--- a/drivers/net/ac3200.c
+++ b/drivers/net/ac3200.c
@@ -146,12 +146,7 @@ struct net_device * __init ac3200_probe(int unit)
err = do_ac3200_probe(dev);
if (err)
goto out;
- err = register_netdev(dev);
- if (err)
- goto out1;
return dev;
-out1:
- cleanup_card(dev);
out:
free_netdev(dev);
return ERR_PTR(err);
@@ -273,7 +268,14 @@ static int __init ac_probe1(int ioaddr, struct net_device *dev)
dev->poll_controller = ei_poll;
#endif
NS8390_init(dev, 0);
+
+ retval = register_netdev(dev);
+ if (retval)
+ goto out2;
return 0;
+out2:
+ if (ei_status.reg0)
+ iounmap((void *)dev->mem_start);
out1:
free_irq(dev->irq, dev);
out:
@@ -392,11 +394,8 @@ init_module(void)
dev->base_addr = io[this_dev];
dev->mem_start = mem[this_dev]; /* Currently ignored by driver */
if (do_ac3200_probe(dev) == 0) {
- if (register_netdev(dev) == 0) {
- dev_ac32[found++] = dev;
- continue;
- }
- cleanup_card(dev);
+ dev_ac32[found++] = dev;
+ continue;
}
free_netdev(dev);
printk(KERN_WARNING "ac3200.c: No ac3200 card found (i/o = 0x%x).\n", io[this_dev]);