ixgbevf: handle race between close and suspend on shutdown

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When an interface is part of a namespace it is possible that
ixgbevf_close() may be called while ixgbevf_suspend() is running
which ends up in a double free WARN and/or a BUG in free_msi_irqs()

To handle this situation we extend the rtnl_lock() to protect the
call to netif_device_detach() and check for !netif_device_present()
to avoid entering close while in suspend.

Also added rtnl locks to ixgbevf_queue_reset_subtask().

CC: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

...

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Emil Tantilov 2016-11-11 10:12:51 -08:00 • committed by Jeff Kirsher

parent f7f37e7ff2

commit 2dad7b2775

1 changed files with 9 additions and 2 deletions

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drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c

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