Merged revisions 148912 via svnmerge from

https://origsvn.digium.com/svn/asterisk/branches/1.4

........
r148912 | mmichelson | 2008-10-14 12:33:38 -0500 (Tue, 14 Oct 2008) | 9 lines

Deadlock prevention in chan_local.

(closes issue #13676)
Reported by: tacvbo
Patches:
      13676.patch uploaded by putnopvut (license 60)
Tested by: tacvbo

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@148913 65c4cc65-6c06-0410-ace0-fbb531ad65f3

diff --git a/channels/chan_local.c b/channels/chan_local.c
index a5fa06b4277545218e07b2507da77768bc9a5f25..cc48b303d371ed1b5b2e18de7175356b906ef4f8 100644 (file)
--- a/channels/chan_local.c
+++ b/channels/chan_local.c
@@ -584,8 +584,12 @@ static int local_hangup(struct ast_channel *ast)
        } else {
                p->owner = NULL;
                ast_module_user_remove(p->u_owner);
+               while (p->chan && ast_channel_trylock(p->chan)) {
+                       DEADLOCK_AVOIDANCE(&p->lock);
+               }
                if (p->chan) {
                        ast_queue_hangup(p->chan);
+                       ast_channel_unlock(p->chan);
                }
        }