padata_cpu_callback() takes pinst->lock, to avoid taking
an uninitialized lock, register the notifier after it's
initialization.
Signed-off-by: Richard Weinberger <rich...@nod.at>
---
kernel/padata.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/kernel/padata.c b/kernel/padata.c
index 072f4ee..8e1bf9d 100644
--- a/kernel/padata.c
+++ b/kernel/padata.c
@@ -1086,18 +1086,18 @@ 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:
--
1.8.3.1
--
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