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i40e: stop the service task at shutdown

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Stop the service task in the shutdown handler, preventing it from
accessing the admin queue after it had been closed. This fixes a panic
that could occur when the system was shut down with a lot of VFs
enabled.

Change-ID: I286735e3842de472385bbf7ad68d30331e508add
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Mitch Williams 2015-01-09 11:18:19 +00:00 committed by Jeff Kirsher
parent 00293fdc42
commit 88086e5d0a
1 changed files with 2 additions and 0 deletions
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drivers/net/ethernet/intel/i40e/i40e_main.c
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@ -9736,6 +9736,8 @@ static int i40e_suspend(struct pci_dev *pdev, pm_message_t state)
set_bit(__I40E_SUSPENDED, &pf->state);
set_bit(__I40E_DOWN, &pf->state);
del_timer_sync(&pf->service_timer);
cancel_work_sync(&pf->service_task);
rtnl_lock();
i40e_prep_for_reset(pf);
rtnl_unlock();