-stable review patch. If anyone has any objections, please let us know.
------------------
Backport of fix described below.
From: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Fix bug #4223.
OK, this happened because we got preempted before sis900_mii_probe
finished setting the sis_priv->mii. Theoretically this can happen
with SMP as well but I suppose the number of SMP machines with sis900
is fairly small.
Anyway, the fix is to make sure that sis900_mii_probe is done before
the device can be opened. This patch does it by moving the setup
before register_netdevice.
Since the netdev name is not available before register_netdev, I've
changed the relevant printk's to use pci_name instead. Note that
one of those printk's may be called after register_netdev as well.
Signed-off-by: Chris Wright <chrisw@xxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>
--- 1.62/drivers/net/sis900.c 2005-01-10 08:52:27 -08:00
+++ edited/drivers/net/sis900.c 2005-03-10 12:23:49 -08:00
@@ -236,7 +236,7 @@ static int __devinit sis900_get_mac_addr
signature = (u16) read_eeprom(ioaddr, EEPROMSignature);
if (signature == 0xffff || signature == 0x0000) {
printk (KERN_INFO "%s: Error EERPOM read %x\n",
- net_dev->name, signature);
+ pci_name(pci_dev), signature);
return 0;
}
@@ -268,7 +268,7 @@ static int __devinit sis630e_get_mac_add
if (!isa_bridge)
isa_bridge = pci_get_device(PCI_VENDOR_ID_SI, 0x0018, isa_bridge);
if (!isa_bridge) {
- printk("%s: Can not find ISA bridge\n", net_dev->name);
+ printk("%s: Can not find ISA bridge\n", pci_name(pci_dev));
return 0;
}
pci_read_config_byte(isa_bridge, 0x48, ®);
@@ -456,10 +456,6 @@ static int __devinit sis900_probe(struct
net_dev->tx_timeout = sis900_tx_timeout;
net_dev->watchdog_timeo = TX_TIMEOUT;
net_dev->ethtool_ops = &sis900_ethtool_ops;
-
- ret = register_netdev(net_dev);
- if (ret)
- goto err_unmap_rx;
/* Get Mac address according to the chip revision */
pci_read_config_byte(pci_dev, PCI_CLASS_REVISION, &revision);
@@ -476,7 +472,7 @@ static int __devinit sis900_probe(struct
if (ret == 0) {
ret = -ENODEV;
- goto err_out_unregister;
+ goto err_unmap_rx;
}
/* 630ET : set the mii access mode as software-mode */
@@ -486,7 +482,7 @@ static int __devinit sis900_probe(struct
/* probe for mii transceiver */
if (sis900_mii_probe(net_dev) == 0) {
ret = -ENODEV;
- goto err_out_unregister;
+ goto err_unmap_rx;
}
/* save our host bridge revision */
@@ -496,6 +492,10 @@ static int __devinit sis900_probe(struct
pci_dev_put(dev);
}
+ ret = register_netdev(net_dev);
+ if (ret)
+ goto err_unmap_rx;
+
/* print some information about our NIC */
printk(KERN_INFO "%s: %s at %#lx, IRQ %d, ", net_dev->name,
card_name, ioaddr, net_dev->irq);
@@ -505,8 +505,6 @@ static int __devinit sis900_probe(struct
return 0;
- err_out_unregister:
- unregister_netdev(net_dev);
err_unmap_rx:
pci_free_consistent(pci_dev, RX_TOTAL_SIZE, sis_priv->rx_ring,
sis_priv->rx_ring_dma);
@@ -533,6 +531,7 @@ static int __devinit sis900_probe(struct
static int __init sis900_mii_probe(struct net_device * net_dev)
{
struct sis900_private * sis_priv = net_dev->priv;
+ const char *dev_name = pci_name(sis_priv->pci_dev);
u16 poll_bit = MII_STAT_LINK, status = 0;
unsigned long timeout = jiffies + 5 * HZ;
int phy_addr;
@@ -582,21 +581,20 @@ static int __init sis900_mii_probe(struc
mii_phy->phy_types =
(mii_status & (MII_STAT_CAN_TX_FDX | MII_STAT_CAN_TX)) ? LAN : HOME;
printk(KERN_INFO "%s: %s transceiver found at address %d.\n",
- net_dev->name, mii_chip_table[i].name,
+ dev_name, mii_chip_table[i].name,
phy_addr);
break;
}
if( !mii_chip_table[i].phy_id1 ) {
printk(KERN_INFO "%s: Unknown PHY transceiver found at address %d.\n",
- net_dev->name, phy_addr);
+ dev_name, phy_addr);
mii_phy->phy_types = UNKNOWN;
}
}
if (sis_priv->mii == NULL) {
- printk(KERN_INFO "%s: No MII transceivers found!\n",
- net_dev->name);
+ printk(KERN_INFO "%s: No MII transceivers found!\n", dev_name);
return 0;
}
@@ -621,7 +619,7 @@ static int __init sis900_mii_probe(struc
poll_bit ^= (mdio_read(net_dev, sis_priv->cur_phy, MII_STATUS) & poll_bit);
if (time_after_eq(jiffies, timeout)) {
printk(KERN_WARNING "%s: reset phy and link down now\n",
- net_dev->name);
+ dev_name);
return -ETIME;
}
}
@@ -691,7 +689,7 @@ static u16 sis900_default_phy(struct net
sis_priv->mii = default_phy;
sis_priv->cur_phy = default_phy->phy_addr;
printk(KERN_INFO "%s: Using transceiver found at address %d as default\n",
- net_dev->name,sis_priv->cur_phy);
+ pci_name(sis_priv->pci_dev), sis_priv->cur_phy);
}
status = mdio_read(net_dev, sis_priv->cur_phy, MII_CONTROL);
-
: send the line "unsubscribe linux-net" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
