diff options
| author | Mitch Williams <mitch.a.williams@intel.com> | 2014-02-21 03:29:07 (GMT) |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-02-21 17:38:25 (GMT) |
| commit | dbb01c8aa0dc8c514cdfd0b11dc401418a4f047a (patch) | |
| tree | 70ec0030b7483672e5c1defc3e71c4358ac76bf8 | |
| parent | ed1f5b58ea01757c5878ecff762e884767da9bab (diff) | |
| download | linux-dbb01c8aa0dc8c514cdfd0b11dc401418a4f047a.tar.xz | |
i40evf: fix multiple crashes on remove
Depending upon the state of the driver, there are several potential
pitfalls on remove. Kill the watchdog task so rmmod doesn't hang.
Check the adapter->msix_entries field, not the num_msix_vectors field,
which is never cleared.
Change-ID: I0546048477f09fc19e481bd37efa30daae4faa88
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/ethernet/intel/i40evf/i40evf_main.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/drivers/net/ethernet/intel/i40evf/i40evf_main.c b/drivers/net/ethernet/intel/i40evf/i40evf_main.c index 75a2c6f..e0eb27d 100644 --- a/drivers/net/ethernet/intel/i40evf/i40evf_main.c +++ b/drivers/net/ethernet/intel/i40evf/i40evf_main.c @@ -215,6 +215,9 @@ static void i40evf_irq_disable(struct i40evf_adapter *adapter) int i; struct i40e_hw *hw = &adapter->hw; + if (!adapter->msix_entries) + return; + for (i = 1; i < adapter->num_msix_vectors; i++) { wr32(hw, I40E_VFINT_DYN_CTLN1(i - 1), 0); synchronize_irq(adapter->msix_entries[i].vector); @@ -2372,17 +2375,15 @@ static void i40evf_remove(struct pci_dev *pdev) } adapter->state = __I40EVF_REMOVE; - if (adapter->num_msix_vectors) { + if (adapter->msix_entries) { i40evf_misc_irq_disable(adapter); - del_timer_sync(&adapter->watchdog_timer); - - flush_scheduled_work(); - i40evf_free_misc_irq(adapter); - i40evf_reset_interrupt_capability(adapter); } + del_timer_sync(&adapter->watchdog_timer); + flush_scheduled_work(); + if (hw->aq.asq.count) i40evf_shutdown_adminq(hw); |