diff --git a/arch/powerpc/perf/imc-pmu.c b/arch/powerpc/perf/imc-pmu.c
index 9ec7e87056e5..671aa20d8dd8 100644
--- a/arch/powerpc/perf/imc-pmu.c
+++ b/arch/powerpc/perf/imc-pmu.c
@@ -611,7 +611,8 @@ static int ppc_core_imc_cpu_online(unsigned int cpu)
 
 static int ppc_core_imc_cpu_offline(unsigned int cpu)
 {
-	unsigned int ncpu, core_id;
+	unsigned int core_id;
+	int ncpu;
 	struct imc_pmu_ref *ref;
 
 	/*