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iommufd/device: Fix hwpt at err_unresv in iommufd_device_do_replace() 

The rewind routine should remove the reserved iovas added to the new hwpt.

Fixes: 89db31635c ("iommufd: Derive iommufd_hwpt_paging from iommufd_hw_pagetable")
Cc: stable@vger.kernel.org
Link: https://patch.msgid.link/r/20240718050130.1956804-1-nicolinc@nvidia.com
Signed-off-by: Nicolin Chen <nicolinc@nvidia.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
pull/937/head
Nicolin Chen 2024-07-17 22:01:30 -07:00 committed by Jason Gunthorpe
parent 8400291e28
commit 950aeefb34
1 changed files with 1 additions and 1 deletions
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2
drivers/iommu/iommufd/device.c
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@ -526,7 +526,7 @@ iommufd_device_do_replace(struct iommufd_device *idev,
err_unresv:
if (hwpt_is_paging(hwpt))
iommufd_group_remove_reserved_iova(igroup,
to_hwpt_paging(old_hwpt));
to_hwpt_paging(hwpt));
err_unlock:
mutex_unlock(&idev->igroup->lock);
return ERR_PTR(rc);