diff --git a/arch/s390/kernel/perf_cpum_sf.c b/arch/s390/kernel/perf_cpum_sf.c
index 7e1e40323b78..bd4bbf61aaf3 100644
--- a/arch/s390/kernel/perf_cpum_sf.c
+++ b/arch/s390/kernel/perf_cpum_sf.c
@@ -823,12 +823,8 @@ static int cpumsf_pmu_event_init(struct perf_event *event)
 	}
 
 	/* Check online status of the CPU to which the event is pinned */
-	if (event->cpu >= 0) {
-		if ((unsigned int)event->cpu >= nr_cpumask_bits)
+	if (event->cpu >= 0 && !cpu_online(event->cpu))
 			return -ENODEV;
-		if (!cpu_online(event->cpu))
-			return -ENODEV;
-	}
 
 	/* Force reset of idle/hv excludes regardless of what the
 	 * user requested.