From: Peilin Ye <yepeilin...@gmail.com> Date: Sat, 12 Sep 2020 06:22:30 -0400
> @@ -291,10 +291,11 @@ static void tipc_group_add_to_tree(struct tipc_group > *grp, > else if (key > nkey) > n = &(*n)->rb_right; > else > - return; > + return -1; Use a real error code like "-EEXIST", thank you.