Commit df29df92 authored by Carolyn Wyborny's avatar Carolyn Wyborny Committed by David S. Miller

igb: Fix for issue where values could be too high for udelay function.

This patch changes the igb_phy_has_link function to check the value of the
parameter before deciding to use udelay or mdelay in order to be sure that
the value is not too high for udelay function.

CC: stable kernel <stable@vger.kernel.org> # 3.9+
Signed-off-by: default avatarSunil K Pandey <sunil.k.pandey@intel.com>
Signed-off-by: default avatarKevin B Smith <kevin.b.smith@intel.com>
Signed-off-by: default avatarCarolyn Wyborny <carolyn.wyborny@intel.com>
Tested-by: default avatarAaron Brown <aaron.f.brown@intel.com>
Signed-off-by: default avatarJeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 3c325ced
......@@ -1728,7 +1728,10 @@ s32 igb_phy_has_link(struct e1000_hw *hw, u32 iterations,
* ownership of the resources, wait and try again to
* see if they have relinquished the resources yet.
*/
udelay(usec_interval);
if (usec_interval >= 1000)
mdelay(usec_interval/1000);
else
udelay(usec_interval);
}
ret_val = hw->phy.ops.read_reg(hw, PHY_STATUS, &phy_status);
if (ret_val)
......
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