Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 5.10 027/145] e1000e: Only run S0ix flows if shutdown succeeded | Date | Mon, 11 Jan 2021 14:00:51 +0100 |
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From: Mario Limonciello <mario.limonciello@dell.com>
[ Upstream commit 808e0d8832cc81738f3e8df12dff0688352baf50 ]
If the shutdown failed, the part will be thawed and running S0ix flows will put it into an undefined state.
Reported-by: Alexander Duyck <alexander.duyck@gmail.com> Reviewed-by: Alexander Duyck <alexander.duyck@gmail.com> Signed-off-by: Mario Limonciello <mario.limonciello@dell.com> Tested-by: Yijun Shen <Yijun.shen@dell.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- drivers/net/ethernet/intel/e1000e/netdev.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-)
--- a/drivers/net/ethernet/intel/e1000e/netdev.c +++ b/drivers/net/ethernet/intel/e1000e/netdev.c @@ -6970,13 +6970,14 @@ static __maybe_unused int e1000e_pm_susp e1000e_pm_freeze(dev); rc = __e1000_shutdown(pdev, false); - if (rc) + if (rc) { e1000e_pm_thaw(dev); - - /* Introduce S0ix implementation */ - if (hw->mac.type >= e1000_pch_cnp && - !e1000e_check_me(hw->adapter->pdev->device)) - e1000e_s0ix_entry_flow(adapter); + } else { + /* Introduce S0ix implementation */ + if (hw->mac.type >= e1000_pch_cnp && + !e1000e_check_me(hw->adapter->pdev->device)) + e1000e_s0ix_entry_flow(adapter); + } return rc; }
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