[Xen-changelog] [xen-unstable] xend, passthrough: Small fix to find_all_the_multi_functions()

[Xen patchbot-unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User Keir Fraser <keir.fraser@xxxxxxxxxx>
# Date 1256559607 0
# Node ID 9c49133434cb920a0593e07e5970d1381086a4db
# Parent  19d6d811bc152c954fa85a9a9004a0702cfc5055
xend, passthrough: Small fix to find_all_the_multi_functions()

From: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
Signed-off-by: Keir Fraser <keir.fraser@xxxxxxxxxx>
---
 tools/python/xen/util/pci.py |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletion(-)

diff -r 19d6d811bc15 -r 9c49133434cb tools/python/xen/util/pci.py
--- a/tools/python/xen/util/pci.py      Mon Oct 26 12:18:50 2009 +0000
+++ b/tools/python/xen/util/pci.py      Mon Oct 26 12:20:07 2009 +0000
@@ -830,7 +830,10 @@ class PciDevice:
 
     def find_all_the_multi_functions(self):
         sysfs_mnt = find_sysfs_mnt()
-        parent = pci_dict_to_bdf_str(self.find_parent())
+        parentdict = self.find_parent()
+        if parentdict is None :
+            return [ self.name ]
+        parent = pci_dict_to_bdf_str(parentdict)
         pci_names = os.popen('ls ' + sysfs_mnt + SYSFS_PCI_DEVS_PATH + '/' + \
             parent + '/').read()
         funcs = extract_the_exact_pci_names(pci_names)

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