sched: Avoid NULL dereference on sd_busy

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Commit 37dc6b50ce ("sched: Remove unnecessary iteration over sched
domains to update nr_busy_cpus") forgot to clear 'sd_busy' under some
conditions leading to a possible NULL deref in set_cpu_sd_state_idle().

Reported-by: Anton Blanchard <anton@samba.org>
Cc: Preeti U Murthy <preeti@linux.vnet.ibm.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20131118113701.GF3866@twins.programming.kicks-ass.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>

...

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Peter Zijlstra 2013-11-19 16:41:49 +01:00 • committed by Ingo Molnar

parent 9abf24d465

commit 42eb088ed2

1 changed files with 2 additions and 1 deletions

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kernel/sched/core.c

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