valgrind: memory leak

[extraSix]

==27526==
==27526== HEAP SUMMARY:
==27526== in use at exit: 561,027 bytes in 13 blocks
==27526== total heap usage: 243 allocs, 230 frees, 1,419,780 bytes allocated
==27526==
==27526== 43 bytes in 5 blocks are indirectly lost in loss record 1 of 8
==27526== at 0x4C2AB80: malloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==27526== by 0x5757B49: strdup (strdup.c:42)
==27526== by 0x54C78FF: json_object_object_add (json_object.c:390)
==27526== by 0x54C8BFB: json_tokener_parse_ex (json_tokener.c:823)
==27526== by 0x54CA2C6: json_tokener_parse_verbose (json_tokener.c:174)
==27526== by 0x54CA31D: json_tokener_parse (json_tokener.c:162)
==27526== by 0x4042F4: get_domain_ip (dal_client.c:95)
==27526== by 0x40291B: process_request (server.c:96)
==27526== by 0x403543: run (threadpool.c:48)
==27526== by 0x4E3F183: start_thread (pthread_create.c:312)
==27526== by 0x57CCFFC: clone (clone.S:111)
==27526==
==27526== 72 bytes in 1 blocks are indirectly lost in loss record 2 of 8
==27526== at 0x4C2CC70: calloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==27526== by 0x54C7161: json_object_new (json_object.c:184)
==27526== by 0x54C79BC: json_object_new_boolean (json_object.c:449)
==27526== by 0x54C8D4D: json_tokener_parse_ex (json_tokener.c:652)
==27526== by 0x54CA2C6: json_tokener_parse_verbose (json_tokener.c:174)
==27526== by 0x54CA31D: json_tokener_parse (json_tokener.c:162)
==27526== by 0x4042F4: get_domain_ip (dal_client.c:95)
==27526== by 0x40291B: process_request (server.c:96)
==27526== by 0x403543: run (threadpool.c:48)
==27526== by 0x4E3F183: start_thread (pthread_create.c:312)
==27526== by 0x57CCFFC: clone (clone.S:111)
==27526==
==27526== 88 bytes in 1 blocks are indirectly lost in loss record 3 of 8
==27526== at 0x4C2CC70: calloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==27526== by 0x54CAE4A: lh_table_new (linkhash.c:434)
==27526== by 0x54C763B: json_object_new_object (json_object.c:364)
==27526== by 0x54C99F7: json_tokener_parse_ex (json_tokener.c:283)
==27526== by 0x54CA2C6: json_tokener_parse_verbose (json_tokener.c:174)
==27526== by 0x54CA31D: json_tokener_parse (json_tokener.c:162)
==27526== by 0x4042F4: get_domain_ip (dal_client.c:95)
==27526== by 0x40291B: process_request (server.c:96)
==27526== by 0x403543: run (threadpool.c:48)
==27526== by 0x4E3F183: start_thread (pthread_create.c:312)
==27526== by 0x57CCFFC: clone (clone.S:111)
==27526==
==27526== 96 bytes in 1 blocks are still reachable in loss record 4 of 8
==27526== at 0x4C2CC70: calloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==27526== by 0x403906: create_queue (queue.c:24)
==27526== by 0x4032AA: start_service (server.c:251)
==27526== by 0x402523: main (main.c:186)
==27526==
==27526== 144 bytes in 2 blocks are indirectly lost in loss record 5 of 8
==27526== at 0x4C2CC70: calloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==27526== by 0x54C7161: json_object_new (json_object.c:184)
==27526== by 0x54C7B3D: json_object_new_int64 (json_object.c:534)
==27526== by 0x54C9C84: json_tokener_parse_ex (json_tokener.c:699)
==27526== by 0x54CA2C6: json_tokener_parse_verbose (json_tokener.c:174)
==27526== by 0x54CA31D: json_tokener_parse (json_tokener.c:162)
==27526== by 0x4042F4: get_domain_ip (dal_client.c:95)
==27526== by 0x40291B: process_request (server.c:96)
==27526== by 0x403543: run (threadpool.c:48)
==27526== by 0x4E3F183: start_thread (pthread_create.c:312)
==27526== by 0x57CCFFC: clone (clone.S:111)
==27526==
==27526== 512 bytes in 1 blocks are indirectly lost in loss record 6 of 8
==27526== at 0x4C2CC70: calloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==27526== by 0x54CAE6C: lh_table_new (linkhash.c:439)
==27526== by 0x54C763B: json_object_new_object (json_object.c:364)
==27526== by 0x54C99F7: json_tokener_parse_ex (json_tokener.c:283)
==27526== by 0x54CA2C6: json_tokener_parse_verbose (json_tokener.c:174)
==27526== by 0x54CA31D: json_tokener_parse (json_tokener.c:162)
==27526== by 0x4042F4: get_domain_ip (dal_client.c:95)
==27526== by 0x40291B: process_request (server.c:96)
==27526== by 0x403543: run (threadpool.c:48)
==27526== by 0x4E3F183: start_thread (pthread_create.c:312)
==27526== by 0x57CCFFC: clone (clone.S:111)
==27526==
==27526== 931 (72 direct, 859 indirect) bytes in 1 blocks are definitely lost in loss record 7 of 8
==27526== at 0x4C2CC70: calloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==27526== by 0x54C7161: json_object_new (json_object.c:184)
==27526== by 0x54C760A: json_object_new_object (json_object.c:360)
==27526== by 0x54C99F7: json_tokener_parse_ex (json_tokener.c:283)
==27526== by 0x54CA2C6: json_tokener_parse_verbose (json_tokener.c:174)
==27526== by 0x54CA31D: json_tokener_parse (json_tokener.c:162)
==27526== by 0x4042F4: get_domain_ip (dal_client.c:95)
==27526== by 0x40291B: process_request (server.c:96)
==27526== by 0x403543: run (threadpool.c:48)
==27526== by 0x4E3F183: start_thread (pthread_create.c:312)
==27526== by 0x57CCFFC: clone (clone.S:111)
==27526==
==27526== 560,000 bytes in 1 blocks are still reachable in loss record 8 of 8
==27526== at 0x4C2CC70: calloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==27526== by 0x40397E: create_queue (queue.c:31)
==27526== by 0x4032AA: start_service (server.c:251)
==27526== by 0x402523: main (main.c:186)
==27526==
==27526== LEAK SUMMARY:
==27526== definitely lost: 72 bytes in 1 blocks
==27526== indirectly lost: 859 bytes in 10 blocks
==27526== possibly lost: 0 bytes in 0 blocks
==27526== still reachable: 560,096 bytes in 2 blocks
==27526== suppressed: 0 bytes in 0 blocks
==27526==
==27526== For counts of detected and suppressed errors, rerun with: -v
==27526== ERROR SUMMARY: 1 errors from 1 contexts (suppressed: 0 from 0)

Some leak cause by json_c(json-c-0.12.1.zip).
Does anyone have such a problem?

[extraSix]

Using the latest realease(json-c-0.13.1-20180305), I got the same result.

[extraSix]

Sorry, it's my code's error.
I didn't use json_object_put to release json_object.