[Patch Part2 V1 04/14] iommu/vt-d: free resources if failed to create domain for PCIe endpoint

From: Jiang Liu
Date: Tue Jan 07 2014 - 04:00:29 EST

Enhance function get_domain_for_dev() to release allocated resources
if failed to create domain for PCIe endpoint, otherwise the allocated
resources will get lost.

Signed-off-by: Jiang Liu <jiang.liu@xxxxxxxxxxxxxxx>
drivers/iommu/intel-iommu.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index da65884..2bbb877 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -2078,6 +2078,8 @@ found_domain:
if (dmar_insert_dev_info(segment, pdev->bus->number, pdev->devfn,
pdev, &domain) == 0)
return domain;
+ else if (!bridge)
+ domain_exit(domain);
/* recheck it here, maybe others set it */
return find_domain(pdev);

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