diff options
Diffstat (limited to 'kernel/cpu.c')
| -rw-r--r-- | kernel/cpu.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/kernel/cpu.c b/kernel/cpu.c index 09207c772c25..0690ac27a253 100644 --- a/kernel/cpu.c +++ b/kernel/cpu.c @@ -137,8 +137,12 @@ int __ref register_cpu_notifier(struct notifier_block *nb) static int __cpu_notify(unsigned long val, void *v, int nr_to_call, int *nr_calls) { - return __raw_notifier_call_chain(&cpu_chain, val, v, nr_to_call, + int ret; + + ret = __raw_notifier_call_chain(&cpu_chain, val, v, nr_to_call, nr_calls); + + return notifier_to_errno(ret); } static int cpu_notify(unsigned long val, void *v) @@ -151,7 +155,7 @@ static void cpu_notify_nofail(unsigned long val, void *v) int err; err = cpu_notify(val, v); - BUG_ON(err == NOTIFY_BAD); + BUG_ON(err); } #ifdef CONFIG_HOTPLUG_CPU @@ -232,14 +236,13 @@ static int __ref _cpu_down(unsigned int cpu, int tasks_frozen) cpu_hotplug_begin(); set_cpu_active(cpu, false); err = __cpu_notify(CPU_DOWN_PREPARE | mod, hcpu, -1, &nr_calls); - if (err == NOTIFY_BAD) { + if (err) { set_cpu_active(cpu, true); nr_calls--; __cpu_notify(CPU_DOWN_FAILED | mod, hcpu, nr_calls, NULL); printk("%s: attempt to take down CPU %u failed\n", __func__, cpu); - err = -EINVAL; goto out_release; } @@ -304,11 +307,10 @@ static int __cpuinit _cpu_up(unsigned int cpu, int tasks_frozen) cpu_hotplug_begin(); ret = __cpu_notify(CPU_UP_PREPARE | mod, hcpu, -1, &nr_calls); - if (ret == NOTIFY_BAD) { + if (ret) { nr_calls--; printk("%s: attempt to bring up CPU %u failed\n", __func__, cpu); - ret = -EINVAL; goto out_notify; } |