Possible use of uninitialized variable when reporting elastic history backend error

** CID 184231:  Error handling issues  (CHECKED_RETURN)
/src/libs/zbxhistory/history_elastic.c: 485 in elastic_writer_flush()


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*** CID 184231:  Error handling issues  (CHECKED_RETURN)
/src/libs/zbxhistory/history_elastic.c: 485 in elastic_writer_flush()
479                                                             " message: %s", curl_page->errbuf);
480                                     }
481                                     else
482                                     {
483                                             long int        err;
484     
>>>     CID 184231:  Error handling issues  (CHECKED_RETURN)
>>>     Calling "curl_easy_getinfo" without checking return value (as is done elsewhere 8 out of 10 times).
485                                             curl_easy_getinfo(msg->easy_handle, CURLINFO_RESPONSE_CODE, &err);
486                                             zabbix_log(LOG_LEVEL_ERR, "cannot send data to elasticsearch, HTTP error code:"
487                                                             " %ld", err);
488                                     }
489                             }
490                             else if (CURLE_OK != msg->data.result)

** CID 184229:  Error handling issues  (CHECKED_RETURN)
/src/libs/zbxhistory/history_elastic.c: 200 in elastic_log_error()


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*** CID 184229:  Error handling issues  (CHECKED_RETURN)
/src/libs/zbxhistory/history_elastic.c: 200 in elastic_log_error()
194     static void     elastic_log_error(CURL *handle, CURLcode error, const char *errbuf)
195     {
196             long    http_code;
197     
198             if (CURLE_HTTP_RETURNED_ERROR == error)
199             {
>>>     CID 184229:  Error handling issues  (CHECKED_RETURN)
>>>     Calling "curl_easy_getinfo" without checking return value (as is done elsewhere 8 out of 10 times).
200                     curl_easy_getinfo(handle, CURLINFO_RESPONSE_CODE, &http_code);
201     
202                     if (0 != page_r.offset)
203                     {
204                             zabbix_log(LOG_LEVEL_ERR, "cannot get values from elasticsearch, HTTP error: %ld, message: %s",
205                                             http_code, page_r.data);