sock_kzfree_s
sock_kzfree_s(sk, key, keylen);
sock_kzfree_s(&ask->sk, key_data, key_datalen);
sock_kzfree_s(sk, ctx->iv, ivlen);
sock_kzfree_s(sk, ctx->result, ds);
sock_kzfree_s(sk, ctx->state, crypto_skcipher_statesize(tfm));
sock_kzfree_s(sk, ctx->iv, crypto_skcipher_ivsize(tfm));
sock_kzfree_s(sk, ctx->state, crypto_skcipher_statesize(tfm));
sock_kzfree_s(sk, ctx->state, statesize);
void sock_kzfree_s(struct sock *sk, void *mem, int size);
EXPORT_SYMBOL(sock_kzfree_s);