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| author | David S. Miller <davem@davemloft.net> | 2009-12-02 07:13:38 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-12-02 07:13:38 +0100 |
| commit | ff9c38bba37937adb909cceb2a6521f2e92e17c6 (patch) | |
| tree | 93bd6152d9fa28348be99ef1c788040cc7b7a94d /drivers/net/smsc9420.c | |
| parent | net: remove [un]register_pernet_gen_... and update the docs. (diff) | |
| parent | ip_fragment: also adjust skb->truesize for packets not owned by a socket (diff) | |
| download | linux-ff9c38bba37937adb909cceb2a6521f2e92e17c6.tar.xz linux-ff9c38bba37937adb909cceb2a6521f2e92e17c6.zip | |
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
net/mac80211/ht.c
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 92e2bbe6b49b..12f0f5d74e3c 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); } |