tree c3ee35cc87f32d6f1d762467bcfaac1a354f29e6
parent 876720593b4cd1420b67de20b2114feb612d787e
author Axel Lin <axel.lin@ingics.com> 1482246057 +0800
committer Dirk Ziegelmeier <dirk@ziegelmeier.net> 1482259531 +0100

mqtt: Check conn_state before create request for sub_unsub

This also avoid a request leak in client->conn_state == TCP_DISCONNECTED error
path.

Signed-off-by: Axel Lin <axel.lin@ingics.com>