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-rw-r--r--kernel/cpu.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/kernel/cpu.c b/kernel/cpu.c
index ab86045..eee0331 100644
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -279,7 +279,8 @@ static int bringup_wait_for_ap(unsigned int cpu)
/* Wait for the CPU to reach CPUHP_AP_ONLINE_IDLE */
wait_for_completion(&st->done);
- BUG_ON(!cpu_online(cpu));
+ if (WARN_ON_ONCE((!cpu_online(cpu))))
+ return -ECANCELED;
/* Unpark the stopper thread and the hotplug thread of the target cpu */
stop_machine_unpark(cpu);
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