e1000: FIX: don't poke at manageability registers for incompatible adapters

The MANC register should not be read for PCI-E adapters at all, as well as
82543 and older where 82543 would master abort when this register was
accessed.

Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/net/e1000/e1000_ethtool.c b/drivers/net/e1000/e1000_ethtool.c
index 773821e4cf57..71fb27880f65 100644
--- a/drivers/net/e1000/e1000_ethtool.c
+++ b/drivers/net/e1000/e1000_ethtool.c
@@ -461,7 +461,8 @@ e1000_get_regs(struct net_device *netdev,
         regs_buff[24] = (uint32_t)phy_data;  /* phy local receiver status */
         regs_buff[25] = regs_buff[24];  /* phy remote receiver status */
         if (hw->mac_type >= e1000_82540 &&
-           hw->media_type == e1000_media_type_copper) {
+            hw->mac_type < e1000_82571 &&
+            hw->media_type == e1000_media_type_copper) {
                 regs_buff[26] = E1000_READ_REG(hw, MANC);
         }
 }