Paul E. McKenney 586e4d4193 scftorture: Avoid NULL pointer exception on early exit ...

When scftorture finds an error in the module parameters controlling
the relative frequencies of smp_call_function*() variants, it takes an
early exit.  So early that it has not allocated memory to track the
kthreads running the test, which results in a segfault.  This commit
therefore checks for the existence of the memory before attempting
to stop the kthreads that would otherwise have been recorded in that
non-existent memory.

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>

2021-07-27 11:39:30 -07:00

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