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: firefly_0821_release~176^2~4^2~13^2~49
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=f029e7b34f25cb1cc6ff46d48dfa2a458611b7a9;p=firefly-linux-kernel-4.4.55.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 0397985a2601..5975d76ce755 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -1833,6 +1833,9 @@ static void dma_ops_domain_free(struct dma_ops_domain *dom)
 		kfree(dom->aperture[i]);
 	}
 
+	if (dom->domain.id)
+		domain_id_free(dom->domain.id);
+
 	kfree(dom);
 }