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chan_sip: sip_subscribe_mwi_destroy should not call sip_destroy

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sip_subscribe_mwi_destroy calls sip_destroy on the reference counted
mwi->call.  This results in the fields of mwi->call being freed, but
mwi->call itself it leaked.  If other code is still using mwi->call
it can cause problems.  This change uses dialog_unref instead, to
balance the ref provided by sip_alloc().

ASTERISK-24087 #close
Reported by: Corey Farrell
Review: https://reviewboard.asterisk.org/r/3834/
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Merged revisions 419440 from http://svn.asterisk.org/svn/asterisk/branches/1.8
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Merged revisions 419441 from http://svn.asterisk.org/svn/asterisk/branches/11


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/12@419442 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Corey Farrell
2014-07-24 17:57:46 +00:00
parent 3ded0141ec
commit c1eb1b0712
1 changed files with 1 additions and 1 deletions
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2
channels/chan_sip.c
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@@ -6575,7 +6575,7 @@ static void sip_subscribe_mwi_destroy(struct sip_subscription_mwi *mwi)
{
if (mwi->call) {
mwi->call->mwi = NULL;
sip_destroy(mwi->call);
mwi->call = dialog_unref(mwi->call, "sip_subscription_mwi destruction");
}
AST_SCHED_DEL(sched, mwi->resub);