e1000e: Avoid kernel crash during shutdown

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While doing shutdown on the PCI device, the corresponding callback
function e1000e_shutdown() is trying to clear those correctable
errors on the upstream P2P bridge. Unfortunately, we don't have
the upstream P2P bridge under some cases (e.g. PCI-passthrou for
KVM on Power). That leads to kernel crash eventually.

The patch adds one more check on that to avoid kernel crash.

Signed-off-by: Li Zhang <zhlcindy@gmail.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

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Li Zhang 2013-08-13 18:42:58 +00:00 • committed by Jeff Kirsher

parent 13129d9b61

commit e8c254c5fe

1 changed files with 7 additions and 0 deletions

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drivers/net/ethernet/intel/e1000e/netdev.c

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