[PATCH AUTOSEL for 4.4 102/162] irqchip/gic-v3: Report failures in gic_irq_domain_alloc

From: Suzuki K Poulose [ Upstream commit 63c16c6eacb69d0cbdaee5dea0dd56d238375fe6 ] 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

[PATCH AUTOSEL for 4.4 102/162] irqchip/gic-v3: Report failures in gic_irq_domain_alloc

From: Suzuki K Poulose [ Upstream commit 63c16c6eacb69d0cbdaee5dea0dd56d238375fe6 ] 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