The kvlist in libubox is evil!

Hello, guys

struct my {
    int data;
    struct list_head me;

struct my *myp = calloc(1, sizeof(*myp));

kvlist_set(my_kv, "no1", myp);

And you can see that after kvlist_set, the me in myp has been changed! It's next and prev are still pointing to the old address.

I think it is better to give the kvlist_init a release function, and set data pointer directly.