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[Xen-changelog] [xen-unstable] vtd: minor edge case memory leak
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| Subject: | [Xen-changelog] [xen-unstable] vtd: minor edge case memory leak |
| From: | Xen patchbot-unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx> |
| Date: | Tue, 16 Sep 2008 06:01:11 -0700 |
| Delivery-date: | Tue, 16 Sep 2008 06:03:34 -0700 |
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# HG changeset patch
# User Keir Fraser <keir.fraser@xxxxxxxxxx>
# Date 1221474920 -3600
# Node ID 01fb29f7283247951bb822684febbf20ecbaed45
# Parent c353f07bae84133a83ec1dbf54bc5f868fd45bb2
vtd: 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>
---
xen/drivers/passthrough/vtd/iommu.c | 1 +
1 files changed, 1 insertion(+)
diff -r c353f07bae84 -r 01fb29f72832 xen/drivers/passthrough/vtd/iommu.c
--- a/xen/drivers/passthrough/vtd/iommu.c Mon Sep 15 11:34:42 2008 +0100
+++ b/xen/drivers/passthrough/vtd/iommu.c Mon Sep 15 11:35:20 2008 +0100
@@ -152,6 +152,7 @@ static u64 bus_to_context_maddr(struct i
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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