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-rw-r--r--arch/s390/kernel/process.c15
1 files changed, 9 insertions, 6 deletions
diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c
index a6a4729e0e94..1c59ec161cf8 100644
--- a/arch/s390/kernel/process.c
+++ b/arch/s390/kernel/process.c
@@ -114,24 +114,27 @@ extern void s390_handle_mcck(void);
114static void default_idle(void) 114static void default_idle(void)
115{ 115{
116 int cpu, rc; 116 int cpu, rc;
117 int nr_calls = 0;
118 void *hcpu;
117#ifdef CONFIG_SMP 119#ifdef CONFIG_SMP
118 struct s390_idle_data *idle; 120 struct s390_idle_data *idle;
119#endif 121#endif
120 122
121 /* CPU is going idle. */ 123 /* CPU is going idle. */
122 cpu = smp_processor_id(); 124 cpu = smp_processor_id();
123 125 hcpu = (void *)(long)cpu;
124 local_irq_disable(); 126 local_irq_disable();
125 if (need_resched()) { 127 if (need_resched()) {
126 local_irq_enable(); 128 local_irq_enable();
127 return; 129 return;
128 } 130 }
129 131
130 rc = atomic_notifier_call_chain(&idle_chain, 132 rc = __atomic_notifier_call_chain(&idle_chain, S390_CPU_IDLE, hcpu, -1,
131 S390_CPU_IDLE, (void *)(long) cpu); 133 &nr_calls);
132 if (rc != NOTIFY_OK && rc != NOTIFY_DONE) 134 if (rc == NOTIFY_BAD) {
133 BUG(); 135 nr_calls--;
134 if (rc != NOTIFY_OK) { 136 __atomic_notifier_call_chain(&idle_chain, S390_CPU_NOT_IDLE,
137 hcpu, nr_calls, NULL);
135 local_irq_enable(); 138 local_irq_enable();
136 return; 139 return;
137 } 140 }