diff options
| author | Jiang Liu <jiang.liu@linux.intel.com> | 2014-02-19 14:07:27 +0800 |
|---|---|---|
| committer | Joerg Roedel <joro@8bytes.org> | 2014-03-04 17:51:01 +0100 |
| commit | e85bb5d4d1d5ef55cf4fbb4da5dda67d2bbacc5c (patch) | |
| tree | 62c55a6b27f820677c758ace5533bd7cf095db7a /drivers | |
| parent | 745f2586e78efc5c226a60cfc8e7fbd735b1c856 (diff) | |
iommu/vt-d: Free resources if failed to create domain for PCIe endpoint
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@linux.intel.com>
Signed-off-by: Joerg Roedel <joro@8bytes.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/iommu/intel-iommu.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index 67b114e784bc..503cc739d4b1 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -2015,7 +2015,7 @@ static int dmar_insert_dev_info(int segment, int bus, int devfn, /* domain is initialized */ static struct dmar_domain *get_domain_for_dev(struct pci_dev *pdev, int gaw) { - struct dmar_domain *domain; + struct dmar_domain *domain, *free = NULL; struct intel_iommu *iommu; struct dmar_drhd_unit *drhd; struct pci_dev *dev_tmp; @@ -2062,17 +2062,16 @@ static struct dmar_domain *get_domain_for_dev(struct pci_dev *pdev, int gaw) free_domain_mem(domain); goto error; } - if (domain_init(domain, gaw)) { - domain_exit(domain); + free = domain; + if (domain_init(domain, gaw)) goto error; - } /* register pcie-to-pci device */ if (dev_tmp) { - if (dmar_insert_dev_info(segment, bus, devfn, NULL, &domain)) { - domain_exit(domain); + if (dmar_insert_dev_info(segment, bus, devfn, NULL, &domain)) goto error; - } + else + free = NULL; } found_domain: @@ -2080,6 +2079,8 @@ found_domain: pdev, &domain) == 0) return domain; error: + if (free) + domain_exit(free); /* recheck it here, maybe others set it */ return find_domain(pdev); } |