> From: Jason Gunthorpe <[email protected]>
> Sent: Thursday, September 18, 2025 4:02 AM
> 
> If something holds a refcount then it is at risk of UAFing. For abort
> paths we expect the caller to never share the object with a parallel
> thread and to clean up any refcounts it obtained on its own.
> 
> Add the missing dec inside iommufd_hwpt_paging_alloc()during error
> unwind
> by making iommufd_hw_pagetable_attach/detach() proper pairs.
> 
> Signed-off-by: Jason Gunthorpe <[email protected]>

Reviewed-by: Kevin Tian <[email protected]>

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