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-rw-r--r--kernel/torture.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/kernel/torture.c b/kernel/torture.c
index fb39a06bbef5..75961b3decfe 100644
--- a/kernel/torture.c
+++ b/kernel/torture.c
@@ -194,6 +194,12 @@ torture_onoff(void *arg)
for_each_online_cpu(cpu)
maxcpu = cpu;
WARN_ON(maxcpu < 0);
+
+ if (maxcpu == 0) {
+ VERBOSE_TOROUT_STRING("Only one CPU, so CPU-hotplug testing is disabled");
+ goto stop;
+ }
+
if (onoff_holdoff > 0) {
VERBOSE_TOROUT_STRING("torture_onoff begin holdoff");
schedule_timeout_interruptible(onoff_holdoff);
@@ -209,6 +215,8 @@ torture_onoff(void *arg)
&sum_online, &min_online, &max_online);
schedule_timeout_interruptible(onoff_interval);
}
+
+stop:
torture_kthread_stopping("torture_onoff");
return 0;
}