genirq: Reserve the irq when calling irq_set_chip()
The helper macros and functions like for_each_active_irq() don't work unless the irq is in the allocated_irqs set. In the case of !CONFIG_SPARSE_IRQ, instead of forcing all users of the irq infrastructure to explicitly call irq_reserve_irq(), do it for them. Signed-off-by: David Daney <ddaney@caviumnetworks.com> Cc: linux-mips@linux-mips.org Cc: ralf@linux-mips.org LKML-Reference: <1301081931-11240-2-git-send-email-ddaney@caviumnetworks.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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@ -37,6 +37,12 @@ int irq_set_chip(unsigned int irq, struct irq_chip *chip)
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irq_chip_set_defaults(chip);
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irq_chip_set_defaults(chip);
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desc->irq_data.chip = chip;
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desc->irq_data.chip = chip;
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irq_put_desc_unlock(desc, flags);
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irq_put_desc_unlock(desc, flags);
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/*
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* For !CONFIG_SPARSE_IRQ make the irq show up in
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* allocated_irqs. For the CONFIG_SPARSE_IRQ case, it is
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* already marked, and this call is harmless.
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*/
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irq_reserve_irq(irq);
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return 0;
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return 0;
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}
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}
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EXPORT_SYMBOL(irq_set_chip);
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EXPORT_SYMBOL(irq_set_chip);
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