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| author | Dan Williams <dan.j.williams@intel.com> | 2009-12-23 01:21:47 +0100 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2009-12-23 01:21:47 +0100 |
| commit | f80ca163d65903276bec7045a484a79c0897eb2d (patch) | |
| tree | 97c7d61d43248b9db0757a76af80ff58b98b5599 /drivers/net/smsc9420.c | |
| parent | drivers/dma: Correct use after free (diff) | |
| parent | ioat2,3: put channel hardware in known state at init (diff) | |
| download | linux-f80ca163d65903276bec7045a484a79c0897eb2d.tar.xz linux-f80ca163d65903276bec7045a484a79c0897eb2d.zip | |
Merge branch 'ioat' into fixes
Diffstat (limited to 'drivers/net/smsc9420.c')
| -rw-r--r-- | drivers/net/smsc9420.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/net/smsc9420.c b/drivers/net/smsc9420.c index b4909a2dec66..0f7909276237 100644 --- a/drivers/net/smsc9420.c +++ b/drivers/net/smsc9420.c @@ -252,6 +252,9 @@ static int smsc9420_ethtool_get_settings(struct net_device *dev, { struct smsc9420_pdata *pd = netdev_priv(dev); + if (!pd->phy_dev) + return -ENODEV; + cmd->maxtxpkt = 1; cmd->maxrxpkt = 1; return phy_ethtool_gset(pd->phy_dev, cmd); @@ -262,6 +265,9 @@ static int smsc9420_ethtool_set_settings(struct net_device *dev, { struct smsc9420_pdata *pd = netdev_priv(dev); + if (!pd->phy_dev) + return -ENODEV; + return phy_ethtool_sset(pd->phy_dev, cmd); } @@ -290,6 +296,10 @@ static void smsc9420_ethtool_set_msglevel(struct net_device *netdev, u32 data) static int smsc9420_ethtool_nway_reset(struct net_device *netdev) { struct smsc9420_pdata *pd = netdev_priv(netdev); + + if (!pd->phy_dev) + return -ENODEV; + return phy_start_aneg(pd->phy_dev); } @@ -312,6 +322,10 @@ smsc9420_ethtool_getregs(struct net_device *dev, struct ethtool_regs *regs, for (i = 0; i < 0x100; i += (sizeof(u32))) data[j++] = smsc9420_reg_read(pd, i); + // cannot read phy registers if the net device is down + if (!phy_dev) + return; + for (i = 0; i <= 31; i++) data[j++] = smsc9420_mii_read(phy_dev->bus, phy_dev->addr, i); } |