* The sysfs entry must be serialized against a concurrent
* irq_sysfs_init() as well.
*/
- mutex_lock(&sparse_irq_lock);
kobject_del(&desc->kobj);
delete_irq_desc(irq);
- mutex_unlock(&sparse_irq_lock);
/*
* We free the descriptor, masks and stat fields via RCU. That
desc = alloc_desc(start + i, node, flags, mask, owner);
if (!desc)
goto err;
- mutex_lock(&sparse_irq_lock);
irq_insert_desc(start + i, desc);
irq_sysfs_add(start + i, desc);
- mutex_unlock(&sparse_irq_lock);
}
+ bitmap_set(allocated_irqs, start, cnt);
return start;
err:
for (i--; i >= 0; i--)
free_desc(start + i);
-
- mutex_lock(&sparse_irq_lock);
- bitmap_clear(allocated_irqs, start, cnt);
- mutex_unlock(&sparse_irq_lock);
return -ENOMEM;
}
desc->owner = owner;
}
+ bitmap_set(allocated_irqs, start, cnt);
return start;
}
if (from >= nr_irqs || (from + cnt) > nr_irqs)
return;
+ mutex_lock(&sparse_irq_lock);
for (i = 0; i < cnt; i++)
free_desc(from + i);
- mutex_lock(&sparse_irq_lock);
bitmap_clear(allocated_irqs, from, cnt);
mutex_unlock(&sparse_irq_lock);
}
from, cnt, 0);
ret = -EEXIST;
if (irq >=0 && start != irq)
- goto err;
+ goto unlock;
if (start + cnt > nr_irqs) {
ret = irq_expand_nr_irqs(start + cnt);
if (ret)
- goto err;
+ goto unlock;
}
-
- bitmap_set(allocated_irqs, start, cnt);
- mutex_unlock(&sparse_irq_lock);
- return alloc_descs(start, cnt, node, affinity, owner);
-
-err:
+ ret = alloc_descs(start, cnt, node, affinity, owner);
+unlock:
mutex_unlock(&sparse_irq_lock);
return ret;
}