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| author | Julia Lawall <Julia.Lawall@lip6.fr> | 2012-07-24 18:18:14 +0400 |
|---|---|---|
| committer | Joerg Roedel <joerg.roedel@amd.com> | 2012-08-03 18:04:15 +0400 |
| commit | d2900bd63f65bf1f40bf17f3c51457ae29fae6a8 (patch) | |
| tree | 2d22a593d7e94102c5d3cc461ca561f567b88071 /drivers/iommu | |
| parent | 9579a974d1018c7f1d42455c29aa3f0d512c99fe (diff) | |
| download | linux-d2900bd63f65bf1f40bf17f3c51457ae29fae6a8.tar.xz | |
iommu/intel: add missing free_domain_mem
Add missing free_domain_mem on failure path after alloc_domain.
A simplified version of the semantic match that finds this
problem is as follows: (http://coccinelle.lip6.fr/)
// <smpl>
@km exists@
local idexpression e;
expression e1,e2,e3;
type T,T1;
identifier f;
@@
* e = alloc_domain(...)
... when any
when != e = e1
when != e1 = (T)e
when != e1(...,(T)e,...)
when != &e->f
if(...) { ... when != e2(...,(T1)e,...)
when != e3 = e
when forall
(
return <+...e...+>;
|
* return ...;
) }
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Diffstat (limited to 'drivers/iommu')
| -rw-r--r-- | drivers/iommu/intel-iommu.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index 7469b5346643..0204b62480b0 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -2008,6 +2008,7 @@ static struct dmar_domain *get_domain_for_dev(struct pci_dev *pdev, int gaw) if (!drhd) { printk(KERN_ERR "IOMMU: can't find DMAR for device %s\n", pci_name(pdev)); + free_domain_mem(domain); return NULL; } iommu = drhd->iommu; |