Re: [PATCH] iommu/intel-iommu: fix memory leak in intel_iommu_put_resv_regions()

[Joerg Roedel]

On Wed, Jan 16, 2019 at 08:11:44PM +0100, Gerald Schaefer wrote:
> Commit 9d3a4de4cb8d ("iommu: Disambiguate MSI region types") changed
> the reserved region type in intel_iommu_get_resv_regions() from
> IOMMU_RESV_RESERVED to IOMMU_RESV_MSI, but it forgot to also change
> the type in intel_iommu_put_resv_regions().
> 
> This leads to a memory leak, because now the check in
> intel_iommu_put_resv_regions() for IOMMU_RESV_RESERVED will never
> be true, and no allocated regions will be freed.
> 
> Fix this by changing the region type in intel_iommu_put_resv_regions()
> to IOMMU_RESV_MSI, matching the type of the allocated regions.
> 
> Fixes: 9d3a4de4cb8d ("iommu: Disambiguate MSI region types")
> Cc: <stable@xxxxxxxxxxxxxxx> # v4.11+
> Signed-off-by: Gerald Schaefer <gerald.schaefer@xxxxxxxxxx>
> ---
>  drivers/iommu/intel-iommu.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Applied, thanks.