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Commit ecedc7af authored by Joonwoo Park's avatar Joonwoo Park Committed by Lingutla Chandrasekhar
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sched: ceil idle index to prevent from out of bound accessing 



It's possible size of given idle cost index is smaller than CPU's
possible idle index size.  Ceil the CPU's idle index to prevent out
of bound accessing.

Change-Id: Idecb4f68758dd0183886ea74d0e9da3d236b0062
Signed-off-by: default avatarJoonwoo Park <joonwoop@codeaurora.org>
Signed-off-by: default avatarLingutla Chandrasekhar <clingutla@codeaurora.org>
parent bb5b0e61

kernel/sched/fair.c

+3 −0
Original line number Diff line number Diff line
@@ -5810,6 +5810,9 @@ static int calc_sg_energy(struct energy_env *eenv) 
		idle_idx = group_idle_state(eenv, cpu_idx);

		if (unlikely(idle_idx < 0))

			return idle_idx;

		if (idle_idx > sg->sge->nr_idle_states - 1)

			idle_idx = sg->sge->nr_idle_states - 1;



		idle_power = sg->sge->idle_states[idle_idx].power;



		idle_energy   = SCHED_CAPACITY_SCALE - sg_util;