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authorAlex Williamson <alex.williamson@redhat.com>2011-03-04 14:52:30 -0700
committerAndi Kleen <ak@linux.intel.com>2011-04-28 08:21:11 -0700
commite77004d6125829cc856553e08fb2d5d2afb2e289 (patch)
treed458c6471de3d1945464ed9925f522bf00860818
parent8e2f9d0be8626aca810c8cac38fce207ea81af4a (diff)
intel-iommu: Fix get_domain_for_dev() error path
commit 2fe9723df8e45fd247782adea244a5e653c30bf4 upstream. If we run out of domain_ids and fail iommu_attach_domain(), we fall into domain_exit() without having setup enough of the domain structure for this to do anything useful. In fact, it typically runs off into the weeds walking the bogus domain->devices list. Just free the domain. Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Acked-by: Donald Dutile <ddutile@redhat.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Andi Kleen <ak@linux.intel.com>
-rw-r--r--drivers/pci/intel-iommu.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c
index 50e083e4208c..83ac0a08f701 100644
--- a/drivers/pci/intel-iommu.c
+++ b/drivers/pci/intel-iommu.c
@@ -1835,7 +1835,7 @@ static struct dmar_domain *get_domain_for_dev(struct pci_dev *pdev, int gaw)
ret = iommu_attach_domain(domain, iommu);
if (ret) {
- domain_exit(domain);
+ free_domain_mem(domain);
goto error;
}