res_pjsip_pubsub: Hold module reference for publications.

Incoming publications need to ensure that the module remains
loaded for the lifetime of them. This is now done by holding
a reference to the module while the publication exists. This
mirrors that of inbound subscriptions.

ASTERISK-27783

Change-Id: Ia98c95a15e11af25728d5fb3e56e12cda0cfc7c0

diff --git a/res/res_pjsip_pubsub.c b/res/res_pjsip_pubsub.c
index 6b4743cfb3bec952c61a757bd8451de02f0ac521..3462cb1cc9d04215557ccf25208cabc5a3de62c4 100644 (file)
--- a/res/res_pjsip_pubsub.c
+++ b/res/res_pjsip_pubsub.c
@@ -3096,6 +3096,8 @@ static void publication_destroy_fn(void *obj)
 
        ao2_cleanup(publication->datastores);
        ao2_cleanup(publication->endpoint);
+
+       ast_module_unref(ast_module_info->self);
 }
 
 static struct ast_sip_publication *sip_create_publication(struct ast_sip_endpoint *endpoint, pjsip_rx_data *rdata,
@@ -3112,6 +3114,8 @@ static struct ast_sip_publication *sip_create_publication(struct ast_sip_endpoin
                return NULL;
        }
 
+       ast_module_ref(ast_module_info->self);
+
        if (!(publication->datastores = ast_datastores_alloc())) {
                ao2_ref(publication, -1);
                return NULL;