revert my pass through the tree to remove checks of the result of ast_strdupa

(revisions 8378 through 8381)


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@8387 65c4cc65-6c06-0410-ace0-fbb531ad65f3

apps/app_stack.c

@@ -130,6 +130,10 @@ static int gosubif_exec(struct ast_channel *chan, void *data)
 	}
 
 	args = ast_strdupa((char *)data);
+	if (!args) {
+		ast_log(LOG_ERROR, "Out of memory\n");
+		return -1;
+	}
 
 	LOCAL_USER_ADD(u);