[asterisk-dev] [Code Review] Chan_dahdi reload memory leak due to variables

[jrose]

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https://reviewboard.asterisk.org/r/1170/
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Review request for Asterisk Developers.


Summary
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reload chan_dahdi would cause variables to spill over from the previous config into the current config as well as add any variables in the new config (if left the same, full on duplication)
This patch purges variables from pvts when they are reconfigured as well as from the configuration pvt once the configuration has been loaded.


This addresses bug 17450.
    https://issues.asterisk.org/view.php?id=17450


Diffs
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Diff: https://reviewboard.asterisk.org/r/1170/diff


Testing
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!touch /etc/asterisk/chan_dahdi.conf
reload chan_dahdi
memory show summary / memory show allocations chan_dahdi.c

Performed with a variety of chan_dahdi.conf changes (and lack of changes)


Thanks,

jrose

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