json: Make it obvious that ast_json_unref() is NULL safe.

It looked like the safety check was done after the NULL pointer was used.


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/12@399576 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Richard Mudgett
2013-09-21 00:16:18 +00:00
parent c71782321c
commit f17f1d0073

View File

@@ -213,13 +213,15 @@ void ast_json_unref(struct ast_json *json)
struct json_mem_list *free_list;
struct json_mem *mem;
if (!json) {
return;
}
/* Jansson refcounting is non-atomic; lock it. */
{
SCOPED_JSON_LOCK(json);
if (!json) {
return;
}
json_decref((json_t *)json);
json_decref((json_t *) json);
}
/* Now free any objects that were ast_json_free()'s while the lock was