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Fix deadlock potential with ast_set_hangupsource() calls.

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Calling ast_set_hangupsource() with the channel lock held can result in a
deadlock because the function also locks the bridged channel.

(issue ASTERISK-19537)

(closes issue AST-891)
Reported by: Guenther Kelleter
Tested by: Guenther Kelleter

(closes issue ASTERISK-19801)
Reported by: Alec Davis
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Merged revisions 368759 from http://svn.asterisk.org/svn/asterisk/branches/1.8
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Merged revisions 368760 from http://svn.asterisk.org/svn/asterisk/branches/10


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@368772 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Richard Mudgett
2012-06-11 17:34:08 +00:00
parent c6142cf2cc
commit 72eb8eb1e7
6 changed files with 83 additions and 19 deletions
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include/asterisk/channel.h
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@@ -1388,6 +1388,8 @@ void ast_channel_clear_softhangup(struct ast_channel *chan, int flag);
* \param source a string describing the source of the hangup for this channel
* \param force
*
* \note Absolutely _NO_ channel locks should be held before calling this function.
*
* \since 1.8
*
* Hangupsource is generally the channel name that caused the bridge to be