linux-kernel - [PATCH 3.12 062/127] iommu/amd: Free domain id when free a domain of struct dma_ops

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Date:   Fri, 25 Nov 2016 09:29:35 +0100
From:   Jiri Slaby <jslaby@...e.cz>
To:     stable@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, Baoquan He <bhe@...hat.com>,
        Joerg Roedel <jroedel@...e.de>, Jiri Slaby <jslaby@...e.cz>
Subject: [PATCH 3.12 062/127] iommu/amd: Free domain id when free a domain of struct dma_ops_domain

From: Baoquan He <bhe@...hat.com>

3.12-stable review patch.  If anyone has any objections, please let me know.

===============

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@...hat.com>
Fixes: ec487d1a110a ('x86, AMD IOMMU: add domain allocation and deallocation functions')
Signed-off-by: Joerg Roedel <jroedel@...e.de>
Signed-off-by: Jiri Slaby <jslaby@...e.cz>
---
 drivers/iommu/amd_iommu.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index 73353a97aafb..71f9cd108590 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -2032,6 +2032,9 @@ 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);
 }
 
-- 
2.10.2