Re: [PATCH v7 01/28] iommufd: Report unmapped bytes in the error path of iopt_unmap_iova_range

Jason Gunthorpe
2025-07-04T13:01:54Z

On Thu, Jun 26, 2025 at 12:34:32PM -0700, Nicolin Chen wrote:
> There are callers that read the unmapped bytes even when rc != 0. Thus, do
> not forget to report it in the error path too.
>
> Fixes: 8d40205f6093 ("iommufd: Add kAPI toward external drivers for kernel access")
> Cc: stable@vger.kernel.org
> Signed-off-by: Nicolin Chen <nicolinc@nvidia.com>
> ---
> drivers/iommu/iommufd/io_pagetable.c | 7 +++++--
> 1 file changed, 5 insertions(+), 2 deletions(-)

Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>

Jason