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padata - Register hotcpu notifier after initialization 

padata_cpu_callback() takes pinst->lock, to avoid taking
an uninitialized lock, register the notifier after it's
initialization.

Signed-off-by: Richard Weinberger <richard@nod.at>
Acked-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Richard Weinberger 2013-08-23 13:12:33 +02:00 committed by Herbert Xu
parent 9c823f9f7e
commit b8b4a4166e
1 changed files with 6 additions and 6 deletions
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12
kernel/padata.c
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@ -1074,18 +1074,18 @@ struct padata_instance *padata_alloc(struct workqueue_struct *wq,
pinst->flags = 0;
#ifdef CONFIG_HOTPLUG_CPU
pinst->cpu_notifier.notifier_call = padata_cpu_callback;
pinst->cpu_notifier.priority = 0;
register_hotcpu_notifier(&pinst->cpu_notifier);
#endif
put_online_cpus();
BLOCKING_INIT_NOTIFIER_HEAD(&pinst->cpumask_change_notifier);
kobject_init(&pinst->kobj, &padata_attr_type);
mutex_init(&pinst->lock);
#ifdef CONFIG_HOTPLUG_CPU
pinst->cpu_notifier.notifier_call = padata_cpu_callback;
pinst->cpu_notifier.priority = 0;
register_hotcpu_notifier(&pinst->cpu_notifier);
#endif
return pinst;
err_free_masks: