[asterisk-dev] [Code Review] Fix deadlock in chan_sip.

[Matthew Nicholson]

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Review request for Asterisk Developers.


Summary
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This patch resolves a deadlock in chan_sip caused by the channel pvt getting locked before the channel lock.  This change also fixes a race condition involving a channel variable returned by pbx_builtin_get_var_helper().


Diffs
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  /trunk/channels/chan_sip.c 201093 

Diff: http://reviewboard.digium.com/r/285/diff


Testing
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Lightly tested in my lab environment.


Thanks,

Matthew