[4.6] libct/cg/fs/freezer: make sure to thaw on failure #47
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(this is a backport of upstream PR opencontainers/runc#2918)
Function
(*FreezerGroup).Set(path, configs.Frozen)
has a few pathswhere in can return an error. In any case, if an error is returned,
we failed to freeze, and we need to thaw to avoid leaving the cgroup
in a stuck state.