iommu/vt-d: Fix memory leak in intel_iommu_put_resv_regions()
commit 198bc3252ea3a45b0c5d500e6a5b91cfdd08f001 upstream. Commit 9d3a4de4 ("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: 9d3a4de4 ("iommu: Disambiguate MSI region types") Cc: <stable@vger.kernel.org> # v4.11+ Signed-off-by: NGerald Schaefer <gerald.schaefer@de.ibm.com> Reviewed-by: NEric Auger <eric.auger@redhat.com> Signed-off-by: NJoerg Roedel <jroedel@suse.de> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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