memory leak at ngx_pool_cleanup_add ?

[Franchoze Eric]

Is free() needed here?

ngx_pool_cleanup_t *
ngx_pool_cleanup_add(ngx_pool_t *p, size_t size)
{
    ngx_pool_cleanup_t  *c;

    c = ngx_palloc(p, sizeof(ngx_pool_cleanup_t));
    if (c == NULL) {
        return NULL;
    }

    if (size) {
        c->data = ngx_palloc(p, size);
        !!! do we need nginx_free(p); here?!!!!

        if (c->data == NULL) {
            return NULL;
        }