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e1000e: Warn if disabling ULP failed

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The hardware may stop working if driver failed to disable ULP mode.

Take the return value of e1000_disable_ulp_lpt_lp() into account, and
pass up the error if it fails.

Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Kai-Heng Feng 2020-05-07 14:25:45 +08:00 committed by Jeff Kirsher
parent 165ae7a8fe
commit 0c80cdbf33
1 changed files with 5 additions and 1 deletions
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6
drivers/net/ethernet/intel/e1000e/ich8lan.c
View file

@ -300,7 +300,11 @@ static s32 e1000_init_phy_workarounds_pchlan(struct e1000_hw *hw)
* so forcibly disable it.
*/
hw->dev_spec.ich8lan.ulp_state = e1000_ulp_state_unknown;
e1000_disable_ulp_lpt_lp(hw, true);
ret_val = e1000_disable_ulp_lpt_lp(hw, true);
if (ret_val) {
e_warn("Failed to disable ULP\n");
goto out;
}
ret_val = hw->phy.ops.acquire(hw);
if (ret_val) {