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channel: Fix topology API locking.

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* ast_channel_request_stream_topology_change() must not be called with any
channel locks held.

* ast_channel_stream_topology_changed() must be called with only the
passed channel lock held.

ASTERISK-27212

Change-Id: I843de7956d9f1cc7cc02025aea3463d8fe19c691
This commit is contained in:
Richard Mudgett
2017-08-11 16:31:45 -05:00
parent b7c27e1c84
commit 6c555891eb
3 changed files with 14 additions and 3 deletions
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4
include/asterisk/channel.h
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@@ -4934,7 +4934,7 @@ int ast_channel_is_multistream(struct ast_channel *chan);
* \param topology The new stream topology
* \param change_source The source that initiated the change
*
* \pre chan is locked
* \note Absolutely _NO_ channel locks should be held before calling this function.
*
* \retval 0 request has been accepted to be attempted
* \retval -1 request could not be attempted
@@ -4956,7 +4956,7 @@ int ast_channel_request_stream_topology_change(struct ast_channel *chan,
* \param chan The channel to provide notice to
* \param topology The new stream topology
*
* \pre chan is locked
* \pre chan is locked Absolutely _NO_ other channels can be locked.
*
* \retval 0 success
* \retval -1 failure