diff --git a/arch/alpha/oprofile/common.c b/arch/alpha/oprofile/common.c
index 908eb4af8dec..ba788cfdc3c6 100644
--- a/arch/alpha/oprofile/common.c
+++ b/arch/alpha/oprofile/common.c
@@ -65,7 +65,7 @@ op_axp_setup(void)
 	model->reg_setup(&reg, ctr, &sys);
 
 	/* Configure the registers on all cpus.  */
-	smp_call_function(model->cpu_setup, &reg, 0, 1);
+	(void)smp_call_function(model->cpu_setup, &reg, 0, 1);
 	model->cpu_setup(&reg);
 	return 0;
 }
@@ -86,7 +86,7 @@ op_axp_cpu_start(void *dummy)
 static int
 op_axp_start(void)
 {
-	smp_call_function(op_axp_cpu_start, NULL, 0, 1);
+	(void)smp_call_function(op_axp_cpu_start, NULL, 0, 1);
 	op_axp_cpu_start(NULL);
 	return 0;
 }
@@ -101,7 +101,7 @@ op_axp_cpu_stop(void *dummy)
 static void
 op_axp_stop(void)
 {
-	smp_call_function(op_axp_cpu_stop, NULL, 0, 1);
+	(void)smp_call_function(op_axp_cpu_stop, NULL, 0, 1);
 	op_axp_cpu_stop(NULL);
 }