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xen-devel
[Xen-devel] [PATCH] VT-d minor edge case memory leak
Fixes an (unlikely) memory leak where mapped VT-d root entries are not
unmapped on allocation failure code path.
Signed-off-by: Ross Philipson <ross.philipson@xxxxxxxxxx>
diff -Nur a/xen/drivers/passthrough/vtd/iommu.c
b/xen/drivers/passthrough/vtd/iommu.c
--- a/xen/drivers/passthrough/vtd/iommu.c 2008-09-12
08:40:15.000000000 -0400
+++ b/xen/drivers/passthrough/vtd/iommu.c 2008-09-12
15:13:36.000000000 -0400
@@ -152,6 +152,7 @@
maddr = alloc_pgtable_maddr();
if ( maddr == 0 )
{
+ unmap_vtd_domain_page(root_entries);
spin_unlock_irqrestore(&iommu->lock, flags);
return 0;
}
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