diff --git a/arch/sh/kernel/process_32.c b/arch/sh/kernel/process_32.c
index 908731c49afb92122518ab804e3bf1f4d7435b3c..e781540bd991f4e46681dfb9ef6e908f915ef9d5 100644
--- a/arch/sh/kernel/process_32.c
+++ b/arch/sh/kernel/process_32.c
@@ -59,8 +59,12 @@ static void default_idle(void)
 		clear_thread_flag(TIF_POLLING_NRFLAG);
 		smp_mb__after_clear_bit();
 		set_bl_bit();
+		stop_critical_timings();
+
 		while (!need_resched())
 			cpu_sleep();
+
+		start_critical_timings();
 		clear_bl_bit();
 		set_thread_flag(TIF_POLLING_NRFLAG);
 	} else