closes issue #11285, where an unload of a module that creates a dialplan context, causes a crash when you do a 'dialplan show' of that context. This is because the registrar string is defined in the module, and the stale pointer is traversed. The reporter offered a patch that would always strdup the registrar string, which is practical, but I preferred to destroy the created contexts in each module where one is created. That seemed more symmetric. There were only 6 place in asterisk where this is done: chan_sip, chan_iax2, chan_skinny, res_features, app_dial, and app_queue. The two apps destroyed the context, but left the contexts. All is fixed now and unloads should be dialplan friendly.

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@89513 65c4cc65-6c06-0410-ace0-fbb531ad65f3

1 files changed, 6 insertions, 1 deletions

diff --git a/channels/chan_iax2.c b/channels/chan_iax2.c
index 6e2a0ab96..725d25758 100644
--- a/channels/chan_iax2.c
+++ b/channels/chan_iax2.c
@@ -11400,6 +11400,7 @@ static struct ast_cli_entry cli_iax2[] = {
 static int __unload_module(void)
 {
 	struct iax2_thread *thread = NULL;
+	struct ast_context *con;
 	int x;
 
 	/* Make sure threads do not hold shared resources when they are canceled */
@@ -11465,7 +11466,11 @@ static int __unload_module(void)
 
 	ao2_ref(peers, -1);
 	ao2_ref(users, -1);
-
+	
+	con = ast_context_find(regcontext);
+	if (con)
+		ast_context_destroy(con, "IAX2");
+	
 	return 0;
 }