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gic_shared_irq_domain_map() is called from gic_irq_domain_alloc() where
the wrong chip has been set, and is then overwritten. Tidy this up by
setting the correct chip the first time, and setting the
handle_level_irq handler from gic_irq_domain_alloc() too.
gic_shared_irq_domain_map() is also called from gic_irq_domain_map(),
which now calls irq_set_chip_and_handler() to retain its previous
behaviour.
This patch prepares for a follow-on which will call
gic_shared_irq_domain_map() from a callback where the lock on the struct
irq_desc is held, which without this change would cause the call to
irq_set_chip_and_handler() to lead to a deadlock.
Fixes: c98c1822ee13 ("irqchip/mips-gic: Add device hierarchy domain")
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: stable@vger.kernel.org
Link: http://lkml.kernel.org/r/20160819170715.27820-1-paul.burton@imgtec.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
6a33fa2b87