irqdomain: Fix irq_domain_alloc_irqs_recursive() error handling
If an irq_domain is auto-recursive and irq_domain_alloc_irqs_recursive() for its parent has returned an error, then do return and avoid calling irq_domain_free_irqs_recursive() uselessly, because: - if domain->ops->alloc() had failed for an auto-recursive irq_domain, then irq_domain_free_irqs_recursive() had already been called; - if domain->ops->alloc() had failed for a not auto-recursive irq_domain, then there is nothing to free at all. Signed-off-by: Alexander Popov <alex.popov@linux.com> Acked-by: Marc Zyngier <marc.zyngier@arm.com> Link: http://lkml.kernel.org/r/1467505448-2850-1-git-send-email-alex.popov@linux.comSigned-off-by: Thomas Gleixner <tglx@linutronix.de>
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