irqchip/gic-v2: Report failures in gic_irq_domain_alloc

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If the GIC cannot map an IRQ via irq_domain_ops->alloc(), it doesn't
return an error code.  This can cause a problem with drivers, where
it thinks it has successfully got an IRQ for the device, but requesting
the same ends up failure with -ENOSYS (as the IRQ's chip is not set).

Fixes: commit 9a1091ef00 ("irqchip: gic: Support hierarchy irq domain.")
Cc: Yingjoe Chen <yingjoe.chen@mediatek.com>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>

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Suzuki K Poulose 2017-07-04 10:56:34 +01:00 • committed by Marc Zyngier

parent 0a46230bf0

commit 456c59c31c

1 changed files with 5 additions and 2 deletions

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drivers/irqchip/irq-gic.c

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