ixgbe: force unlock on timeout
The semaphore can be in locked state upon driver load, particularly on 82598 if a machine is rebooted due to panic and the semaphore was acquired just prior to the panic. This patch unlocks the semaphore if it times out. Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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