From: Baoquan He <bhe@redhat.com>
Date: Thu, 15 Sep 2016 08:50:52 +0000 (+0800)
Subject: iommu/amd: Free domain id when free a domain of struct dma_ops_domain
X-Git-Tag: v4.8.9~38
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b6ef0b1422089b442d848509d9d33e693b12e830;p=thirdparty%2Fkernel%2Fstable.git

iommu/amd: Free domain id when free a domain of struct dma_ops_domain

commit c3db901c54466a9c135d1e6e95fec452e8a42666 upstream.

The current code missed freeing domain id when free a domain of
struct dma_ops_domain.

Signed-off-by: Baoquan He <bhe@redhat.com>
Fixes: ec487d1a110a ('x86, AMD IOMMU: add domain allocation and deallocation functions')
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index 96de97a460791..822fc4afad3c7 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -1654,6 +1654,9 @@ static void dma_ops_domain_free(struct dma_ops_domain *dom)
 
 	free_pagetable(&dom->domain);
 
+	if (dom->domain.id)
+		domain_id_free(dom->domain.id);
+
 	kfree(dom);
 }