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author | Jon Hunter <jonathanh@nvidia.com> | 2016-06-21 10:23:22 +0100 |
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committer | Thomas Gleixner <tglx@linutronix.de> | 2016-06-23 10:21:06 +0200 |
commit | d16dcd3d18759eb955e0325572d07457f93494f5 (patch) | |
tree | 5edf1ace27035c1eafd9c9eb7c61bff8bef84065 /drivers/irqchip | |
parent | 30ce0350381351646ef86b64e6d3840b3869833b (diff) |
irqdomain: Fix disposal of mappings for interrupt hierarchies
The function irq_create_of_mapping() is used to create an interrupt
mapping. However, depending on whether the irqdomain, to which the
interrupt belongs, is part of a hierarchy, determines whether the
mapping is created via calling irq_domain_alloc_irqs() or
irq_create_mapping().
To dispose of the interrupt mapping, drivers call irq_dispose_mapping().
However, this function does not check to see if the irqdomain is part
of a hierarchy or not and simply assumes that it was mapped via calling
irq_create_mapping() so calls irq_domain_disassociate() to unmap the
interrupt.
Fix this by checking to see if the irqdomain is part of a hierarchy and
if so call irq_domain_free_irqs() to free/unmap the interrupt.
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Link: http://lkml.kernel.org/r/1466501002-16368-1-git-send-email-jonathanh@nvidia.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'drivers/irqchip')
0 files changed, 0 insertions, 0 deletions