ia64/xen-unstable

changeset 18493:01fb29f72832

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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@citrix.com>
author Keir Fraser <keir.fraser@citrix.com>
date Mon Sep 15 11:35:20 2008 +0100 (2008-09-15)
parents c353f07bae84
children 59aba2cbbb58
files xen/drivers/passthrough/vtd/iommu.c
line diff
     1.1 --- a/xen/drivers/passthrough/vtd/iommu.c	Mon Sep 15 11:34:42 2008 +0100
     1.2 +++ b/xen/drivers/passthrough/vtd/iommu.c	Mon Sep 15 11:35:20 2008 +0100
     1.3 @@ -152,6 +152,7 @@ static u64 bus_to_context_maddr(struct i
     1.4          maddr = alloc_pgtable_maddr();
     1.5          if ( maddr == 0 )
     1.6          {
     1.7 +            unmap_vtd_domain_page(root_entries);
     1.8              spin_unlock_irqrestore(&iommu->lock, flags);
     1.9              return 0;
    1.10          }