Value returned from a function is not checked for errors before being used

Defect 73618 (STATIC_C)
Checker CHECKED_RETURN (subcategory none)
File: /src/mongo/s/balance.cpp
Function mongo::Balancer::_init(mongo::OperationContext *)
/src/mongo/s/balance.cpp, line: 451
Calling "_checkOIDs" without checking return value (as is done elsewhere 1 out of 2 times).

            _checkOIDs(txn);