iommufd/device: Fix hwpt at err_unresv in iommufd_device_do_replace()
commit950aeefb34
upstream. 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> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -525,7 +525,7 @@ iommufd_device_do_replace(struct iommufd_device *idev,
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err_unresv:
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if (hwpt_is_paging(hwpt))
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iommufd_group_remove_reserved_iova(igroup,
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to_hwpt_paging(old_hwpt));
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to_hwpt_paging(hwpt));
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err_unlock:
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mutex_unlock(&idev->igroup->lock);
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return ERR_PTR(rc);
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