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dom0+vm/usb: bugfix in usb_find_unused_frontend()

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Alexandre Bezroutchko 2012-11-07 00:24:05 +01:00
parent 7366ca00e7
commit aeac4d20dc
1 changed files with 1 additions and 3 deletions
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4
dom0/qvm-core/qubesutils.py
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@ -578,9 +578,7 @@ def usb_find_unused_frontend(xs_trans, backend_vm_xid, vm_xid, usb_ver):
if xs.read(xs_trans, '/local/domain/%d/backend/vusb/%d/%d/usb-ver' % (backend_vm_xid, vm_xid, frontend_dev)) != usb_ver: if xs.read(xs_trans, '/local/domain/%d/backend/vusb/%d/%d/usb-ver' % (backend_vm_xid, vm_xid, frontend_dev)) != usb_ver:
last_frontend_dev = frontend_dev last_frontend_dev = frontend_dev
continue continue
if xs.read(xs_trans, "%s/backend-id" % fe_path) == str(backend_vm_xid): # here: found an existing frontend already connected to right backend using an appropriate USB version
last_frontend_dev = frontend_dev
continue
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:
last_frontend_dev = frontend_dev last_frontend_dev = frontend_dev