Commit d72274e5 authored by David Daney's avatar David Daney Committed by Thomas Gleixner

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: default avatarDavid 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: default avatarThomas Gleixner <tglx@linutronix.de>
parent 16c29daf
...@@ -37,6 +37,12 @@ int irq_set_chip(unsigned int irq, struct irq_chip *chip) ...@@ -37,6 +37,12 @@ int irq_set_chip(unsigned int irq, struct irq_chip *chip)
irq_chip_set_defaults(chip); irq_chip_set_defaults(chip);
desc->irq_data.chip = chip; desc->irq_data.chip = chip;
irq_put_desc_unlock(desc, flags); irq_put_desc_unlock(desc, flags);
/*
* For !CONFIG_SPARSE_IRQ make the irq show up in
* allocated_irqs. For the CONFIG_SPARSE_IRQ case, it is
* already marked, and this call is harmless.
*/
irq_reserve_irq(irq);
return 0; return 0;
} }
EXPORT_SYMBOL(irq_set_chip); EXPORT_SYMBOL(irq_set_chip);
......
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