Commit f064a9de authored Oct 15, 2018 by Lingutla Chandrasekhar

sched: fix uninitialized variable usage



Select idle sibling does isolation check for uninitialized variable
instead of prev cpu.

Fix it by replacing the variable with prev_cpu.

Change-Id: Ib4557f583ea7fb7129c930e536138a6924a8cd94
Signed-off-by: Lingutla Chandrasekhar <clingutla@codeaurora.org>
Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>

parent 3424e1d3

kernel/sched/fair.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -7137,7 +7137,7 @@ static inline int __select_idle_sibling(struct task_struct *p, int prev, int tar
		* If the previous cpu is cache affine and idle, don't be stupid.
		*/
		if (prev != target && cpus_share_cache(prev, target) &&
		idle_cpu(prev) && !cpu_isolated(i))
		idle_cpu(prev) && !cpu_isolated(prev))
		return prev;

		sd = rcu_dereference(per_cpu(sd_llc, target));