Kir Kolyshkin 8f7dd9a1c4 devmapper cleanup: improve error msg ...

1. Make sure it's clear the error is from unmount.

2. Simplify the code a bit to make it more readable.

[v2: use errors.Wrap]
[v3: use errors.Wrapf]
[v4: lowercase the error message]

Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
Upstream-commit: 9d00aedebc25507042c5afd4ab8fc6b333ca7c53
Component: engine

2018-03-05 10:08:56 -08:00

components/engine

devmapper cleanup: improve error msg

2018-03-05 10:08:56 -08:00

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