Currently migration_tls_get_creds() adds the reference of creds
but there was no place to unref it. So the OBJECT(creds) will
never be freed and result in memory leak.
The leak stack:
Direct leak of 104 byte(s) in 1 object(s) allocated from:
#0 0xffffa88bd20b in __interceptor_malloc (/usr/lib64/libasan.so.4+0xd320b)
#1 0xffffa7f0cb1b in g_malloc (/usr/lib64/libglib-2.0.so.0+0x58b1b)
#2 0x14b58cb in object_new_with_type qom/object.c:634
#3 0x14b597b in object_new qom/object.c:645
#4 0x14c0e4f in user_creatable_add_type qom/object_interfaces.c:59
#5 0x141c78b in qmp_object_add qom/qom-qmp-cmds.c:312
#6 0x140e513 in qmp_marshal_object_add qapi/qapi-commands-qom.c:279
#7 0x176ba97 in do_qmp_dispatch qapi/qmp-dispatch.c:165
#8 0x176bee7 in qmp_dispatch qapi/qmp-dispatch.c:208
#9 0x136e337 in monitor_qmp_dispatch monitor/qmp.c:150
#10 0x136eae3 in monitor_qmp_bh_dispatcher monitor/qmp.c:239
#11 0x1852e93 in aio_bh_call util/async.c:89
#12 0x18531b7 in aio_bh_poll util/async.c:117
#13 0x18616bf in aio_dispatch util/aio-posix.c:459
#14 0x1853f37 in aio_ctx_dispatch util/async.c:268
#15 0xffffa7f06a7b in g_main_context_dispatch (/usr/lib64/libglib-2.0.so.0+0x52a7b)
Since we're fine to use the borrowed reference when using the creds,
so just remove the object_ref() in migration_tls_get_creds().
Signed-off-by: Zhenyu Ye <yezhenyu2@huawei.com>
Message-Id: <20200722033228.71-1-yezhenyu2@huawei.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
a9e80a5f0c