struct irq_desc *desc,
int cpu, int nr)
{
- unsigned long bytes;
-
init_kstat_irqs(desc, cpu, nr);
- if (desc->kstat_irqs != old_desc->kstat_irqs) {
- /* Compute how many bytes we need per irq and allocate them */
- bytes = nr * sizeof(unsigned int);
-
- memcpy(desc->kstat_irqs, old_desc->kstat_irqs, bytes);
- }
+ if (desc->kstat_irqs != old_desc->kstat_irqs)
+ memcpy(desc->kstat_irqs, old_desc->kstat_irqs,
+ nr * sizeof(*desc->kstat_irqs));
}
static void free_kstat_irqs(struct irq_desc *old_desc, struct irq_desc *desc)
desc = irq_desc_ptrs[irq];
if (desc && old_desc != desc)
- goto out_unlock;
+ goto out_unlock;
node = cpu_to_node(cpu);
desc = kzalloc_node(sizeof(*desc), GFP_ATOMIC, node);
init_copy_one_irq_desc(irq, old_desc, desc, cpu);
irq_desc_ptrs[irq] = desc;
+ spin_unlock_irqrestore(&sparse_irq_lock, flags);
/* free the old one */
free_one_irq_desc(old_desc, desc);
+ spin_unlock(&old_desc->lock);
kfree(old_desc);
+ spin_lock(&desc->lock);
+
+ return desc;
out_unlock:
spin_unlock_irqrestore(&sparse_irq_lock, flags);