RTP documentation states that you can pass NULL as the module, so make sure that...

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@247125 65c4cc65-6c06-0410-ace0-fbb531ad65f3

diff --git a/main/loader.c b/main/loader.c
index 99c9f12..d8a9d64 100644 (file)
--- a/main/loader.c
+++ b/main/loader.c
@@ -1200,6 +1200,10 @@ int ast_loader_unregister(int (*v)(void))
 
 struct ast_module *ast_module_ref(struct ast_module *mod)
 {
+       if (!mod) {
+               return NULL;
+       }
+
        ast_atomic_fetchadd_int(&mod->usecount, +1);
        ast_update_use_count();
 
@@ -1208,6 +1212,10 @@ struct ast_module *ast_module_ref(struct ast_module *mod)
 
 void ast_module_unref(struct ast_module *mod)
 {
+       if (!mod) {
+               return;
+       }
+
        ast_atomic_fetchadd_int(&mod->usecount, -1);
        ast_update_use_count();
 }