698 	u8 *hmac_data = NULL, *tls_key;  in nvme_auth_derive_tls_psk()  local
730 	hmac_data = kmalloc(/* output length */ 2 +  in nvme_auth_derive_tls_psk()
735 	if (!hmac_data) {  in nvme_auth_derive_tls_psk()
741 	hmac_data[i++] = hash_len >> 8;  in nvme_auth_derive_tls_psk()
742 	hmac_data[i++] = hash_len;  in nvme_auth_derive_tls_psk()
746 	hmac_data[i] = sizeof(label);  in nvme_auth_derive_tls_psk()
747 	memcpy(&hmac_data[i + 1], label, sizeof(label));  in nvme_auth_derive_tls_psk()
751 	ctx_len = sprintf(&hmac_data[i + 1], "%02d %s", hmac_id, psk_digest);  in nvme_auth_derive_tls_psk()
756 	hmac_data[i] = ctx_len;  in nvme_auth_derive_tls_psk()
760 	hmac_data[i++] = 1;  in nvme_auth_derive_tls_psk()
767 	ret = nvme_auth_hmac(hmac_id, prk, hash_len, hmac_data, i, tls_key);  in nvme_auth_derive_tls_psk()
774 	kfree_sensitive(hmac_data);  in nvme_auth_derive_tls_psk()