git: cam - Fix bus registration race

[Matthew Dillon]

commit 1da659edbaf30e8c96e76831ef92f93392e01aa8
Author: Matthew Dillon <dillon at apollo.backplane.com>
Date:   Mon Jan 2 18:48:11 2017 -0800

    cam - Fix bus registration race
    
    * Fix bus registration race.  This race could only occur when
      hw.ahci.synchronous_boot is set to 0 (it defaults to 1).

Summary of changes:
 sys/bus/cam/cam_xpt.c | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/1da659edbaf30e8c96e76831ef92f93392e01aa8


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