[SCM] GNU Mach branch, master, updated. v1.7-68-g6c2f6ec

[Samuel Thibault]

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- Log -----------------------------------------------------------------
commit 6c2f6ec6293a9f5b5caa441f379262a3c0510ec9
Author: Brent Baccala <address@hidden>
Date:   Wed Nov 9 20:51:05 2016 -1000

    gsync: Avoid NULL pointer dereference
    
    * kern/gsync.c (gsync_wait, gsync_wake, gsync_requeue):
    Return immediately if task argument is TASK_NULL

-----------------------------------------------------------------------

Summary of changes:
 kern/gsync.c |   21 ++++++++++++---------
 1 file changed, 12 insertions(+), 9 deletions(-)


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