Tonis Tiigi f2841d5298 Fix overlay unmount for the root case
In root case no mount call or reference count
increment actually happens so don’t try to unmount.

Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
Upstream-commit: e4349ad90114c741c729046f7749f0c2fde415c9
Component: engine
2016-10-25 14:40:13 -07:00
S
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