Info

Uninitialized scalar variable The variable will contain an arbitrary value left from earlier computations. Use of an uninitialized variable /src/mongo/db/storage/wiredtiger/wiredtiger_kv_engine.cpp:1100: UNINIT 121570 Declaring variable "wtRet" without initializer. /src/mongo/db/storage/wiredtiger/wiredtiger_kv_engine.cpp:1168: UNINIT 121570 Using uninitialized value "wtRet".

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xgen-internal-githook commented on Fri, 11 Mar 2022 09:20:36 +0000: Author: {'name': 'Yu Jin Kang Park', 'email': 'yujin.kang@mongodb.com', 'username': 'yujin-kang'} Message: SERVER-64025 Initialize wtRet and add non-zero check Branch: master https://github.com/mongodb/mongo/commit/0492ea43ae52b6102e6637b0cd745a2901e6bf06 JIRAUSER1263310 commented on Tue, 1 Mar 2022 17:12:00 +0000: Using git's pickaxe (git log -G / git log -S) it looks like this code was originally setup to like this (source: 014a3045): int wtRet; while ((wtRet = cursor->next(cursor)) == 0) { ... } if (wtRet != WT_NOTFOUND) { } In its current form, the assignment isn't in the while loop condition anymore int wtRet; while (backupBlocks.size() < batchSize) { ... if() { wtRet = (_wtBackup->cursor)->next(_wtBackup->cursor); ... } if (wtRet != WT_NOTFOUND) { }

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