[Linaro-mm-sig] Re: [PATCH] iommufd: take dma_resv lock before dma_buf_unpin() in release path

On Tue, May 26, 2026 at 11:10:34AM +0000, Ankit Soni wrote:

Take the dma_resv lock around dma_buf_unpin() in iopt_release_pages(), matching the iopt_map_dmabuf() convention. dma_buf_detach() acquires the reservation lock internally, so it must remain outside the locked region.

Fixes: 8c5f9645c389 ("iommufd: Add dma_buf_pin()") Reported-by: Ankit Soni Ankit.Soni@amd.com Signed-off-by: Ankit Soni Ankit.Soni@amd.com

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drivers/iommu/iommufd/pages.c | 2 ++ 1 file changed, 2 insertions(+)

Applied to for-next

Thanks, Jason