IB/hfi1: Check xchg returned value for queuing link down entry

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Check xchg returned value for queuing link down entry
to guarantee proper atomic value reads.

Fixes: 626c077c02 ("IB/hfi1: Prevent link down request double queuing")
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Sebastian Sanchez <sebastian.sanchez@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

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Sebastian Sanchez 2017-08-13 08:08:22 -07:00 • committed by Doug Ledford

parent 028e0a67ea

commit b6422bc012

1 changed files with 12 additions and 6 deletions

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18

drivers/infiniband/hw/hfi1/chip.c

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