diff --git a/arch/mips/au1000/common/irq.c b/arch/mips/au1000/common/irq.c
index da61de7761549d89c3e5bc08204ebbdfdea5cd2a..afe05ec12c27d31326d73937081eb7e0631d1c33 100644
--- a/arch/mips/au1000/common/irq.c
+++ b/arch/mips/au1000/common/irq.c
@@ -68,6 +68,7 @@
 
 extern void set_debug_traps(void);
 extern irq_cpustat_t irq_stat [NR_CPUS];
+extern void mips_timer_interrupt(struct pt_regs *regs);
 
 static void setup_local_irq(unsigned int irq, int type, int int_req);
 static unsigned int startup_irq(unsigned int irq);
diff --git a/arch/mips/au1000/common/time.c b/arch/mips/au1000/common/time.c
index f85f1524b36639a1c9c2e9bf0e7ef8673afb4c97..f74d66a58a21a51c8dc2915c8e741fc0b500440a 100644
--- a/arch/mips/au1000/common/time.c
+++ b/arch/mips/au1000/common/time.c
@@ -116,6 +116,7 @@ void mips_timer_interrupt(struct pt_regs *regs)
 
 null:
 	ack_r4ktimer(0);
+	irq_exit();
 }
 
 #ifdef CONFIG_PM