Logically dead code

The indicated dead code may have performed some action; that action will never occur. Code can never be reached because of a logical contradiction
/ext/extractors/csv/csv_extractor.c:162: DEADCODE 120744 Condition "(ret = (*parser->get)(parser, "format", &format)) != 0", taking false branch. Now the value of "ret" is equal to 0.
/ext/extractors/csv/csv_extractor.c:170: DEADCODE 120744 At condition "ret != 0", the value of "ret" must be equal to 0.
/ext/extractors/csv/csv_extractor.c:170: DEADCODE 120744 The condition "ret != 0" cannot be true.
/ext/extractors/csv/csv_extractor.c:171: DEADCODE 120744 Execution cannot reach this statement: "(void)(*wt_api->err_printf)...".