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dom0+vm/usb: improve error reporting in usb_find_unused_frontend()

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Alexandre Bezroutchko 2012-11-07 00:37:50 +01:00
parent aeac4d20dc
commit 900e5327d2
1 changed files with 1 additions and 0 deletions
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dom0/qvm-core/qubesutils.py
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@ -581,6 +581,7 @@ def usb_find_unused_frontend(xs_trans, backend_vm_xid, vm_xid, usb_ver):
# here: found an existing frontend already connected to right backend using an appropriate USB version # here: found an existing frontend already connected to right backend using an appropriate USB version
ports = xs.ls(xs_trans, '/local/domain/%d/backend/vusb/%d/%d/port' % (backend_vm_xid, vm_xid, frontend_dev)) ports = xs.ls(xs_trans, '/local/domain/%d/backend/vusb/%d/%d/port' % (backend_vm_xid, vm_xid, frontend_dev))
if ports is None: if ports is None:
print >> sys.stderr, "No ports in VM %d frontend_dev %d?" % (vm_xid, frontend_dev)
last_frontend_dev = frontend_dev last_frontend_dev = frontend_dev
continue continue
for port in ports: for port in ports: