fix for mi command t_uac_cancel: without calling prepare_to_cancel, the following call to cancel_uacs gives this error:

BUG: tm [t_cancel.c:327]: cancel_branch(): tm: cancel_branch: local_cancel buffer=(nil) != BUSY_BUFFER (trying to continue)

and it does not cancel the transaction. You can view, comment on, or merge this pull request online at:

https://github.com/kamailio/kamailio/pull/825

-- Commit Summary --

* modules/tmx: fix mi command t_uac_cancel

-- File Changes --

M modules/tmx/t_mi.c (1)

-- Patch Links --

https://github.com/kamailio/kamailio/pull/825.patch https://github.com/kamailio/kamailio/pull/825.diff