Warning seen when removing a module using irqdomain framework

[pheragu]

Hi,

I have been working on a interrupt controller driver that uses tree 
based mapping for its domain (irq_domain_add_tree(..)).
If I understand correctly, the clients get a mapping when they call 
platform_get_irq(..).
However, after these clients are removed (rmmod), when I try to remove 
the interrupt controller driver where it calls irq_domain_remove(..), I 
hit this warning from kernel/kernel/irq/irqdomain.c:: 
irq_domain_remove(..)
[WARN_ON(!radix_tree_empty(&domain->revmap_tree));]-
WARNING: CPU: 0 PID: 238 at /kernel/kernel/irq/irqdomain.c:246 
irq_domain_remove+0x84/0x98

Also, I see that the requested IRQs by the clients are still present (in 
/proc/interrupts) even after they had been removed.
Hence, I just wanted to know how to handle this warning. Should the 
client clean up by calling irq_dispose_mapping(..) or is it the 
responsibility of the interrupt controller driver to dispose the 
mappings one by one?

Regards,
Prakruthi Deepak Heragu