diff options
| author | Michael Chan <mchan@broadcom.com> | 2008-07-15 07:37:21 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-07-15 07:37:21 +0200 |
| commit | d6b14486953d0e8d1c57db29bf6104cea198b884 (patch) | |
| tree | 1277536d725fe38f59b23e5f578d3b3924f79aeb /drivers/net/bnx2.c | |
| parent | Merge branch 'davem-next' of master.kernel.org:/pub/scm/linux/kernel/git/jgar... (diff) | |
| download | linux-d6b14486953d0e8d1c57db29bf6104cea198b884.tar.xz linux-d6b14486953d0e8d1c57db29bf6104cea198b884.zip | |
bnx2: Prevent ethtool -s from crashing when device is down.
The device may be in D3-hot state and may crash if we try to
configure the speed settings by accessing the registers.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/bnx2.c')
| -rw-r--r-- | drivers/net/bnx2.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c index ad61cfd2a9ba..e9cfb02bf551 100644 --- a/drivers/net/bnx2.c +++ b/drivers/net/bnx2.c @@ -6215,6 +6215,12 @@ bnx2_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) !(bp->phy_flags & BNX2_PHY_FLAG_REMOTE_PHY_CAP)) goto err_out_unlock; + /* If device is down, we can store the settings only if the user + * is setting the currently active port. + */ + if (!netif_running(dev) && cmd->port != bp->phy_port) + goto err_out_unlock; + if (cmd->autoneg == AUTONEG_ENABLE) { autoneg |= AUTONEG_SPEED; @@ -6272,7 +6278,12 @@ bnx2_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) bp->req_line_speed = req_line_speed; bp->req_duplex = req_duplex; - err = bnx2_setup_phy(bp, cmd->port); + err = 0; + /* If device is down, the new settings will be picked up when it is + * brought up. + */ + if (netif_running(dev)) + err = bnx2_setup_phy(bp, cmd->port); err_out_unlock: spin_unlock_bh(&bp->phy_lock); |