shill: stop devices when deregistering them
update Manager::DeregisterDevice, to call Stop before forgetting
about a device. this is needed in particular for WiFi. without
the call to Stop, cyclic references prevent the WiFi object from
being deleted when Manager forgets it.
BUG=chromium-os:16419
TEST=WiFiManager+new unittest
note that shill doesn't actually pass any of the WiFiManager
tests yet. but this patch eliminates one of the situations in
which it might crash.
Change-Id: I067b80745a05e060430a6d403c47b5c6fa186b51
Reviewed-on: http://gerrit.chromium.org/gerrit/6673
Reviewed-by: mukesh agrawal <quiche@chromium.org>
Tested-by: mukesh agrawal <quiche@chromium.org>
3 files changed