One place memory leak

[lynnux]

fio/engines/http.c

Line 717 in 5b347a1

curl_slist_free_all(slist);

the slist passed into _add_aws_auth_header, it's realloced by curl_slist_append , but in fio_http_queue the slist always 0.

[vincentkfu]

What do you think is the best fix?

slist does not need to be passed to _add_aws_auth_header or _add_swift_header. It seems to me that the least intrusive fix would be to have those two functions return slist and then curl_slist_free_all will have a non-null parameter.

Feel free to send a patch.