bankd/client: Fix memory leak if rspro_enc_msg() fails

Change-Id: Ib72b077d82939be0627b9dd7c905fb2a33db9ca5

src/bankd_main.c

@@ -435,6 +435,7 @@ static int worker_send_rspro(struct bankd_worker *worker, RsproPDU_t *pdu)
 	int rc;
 
 	if (!msg) {
+		ASN_STRUCT_FREE(asn_DEF_RsproPDU, pdu);
 		LOGW(worker, "error encoding RSPRO\n");
 		return -1;
 	}

src/rspro_client_fsm.c

@@ -58,8 +58,10 @@ static void push_and_send(struct ipa_client_conn *ipa, struct msgb *msg_tx)
 int ipa_client_conn_send_rspro(struct ipa_client_conn *ipa, RsproPDU_t *rspro)
 {
 	struct msgb *msg = rspro_enc_msg(rspro);
-	if (!msg)
+	if (!msg) {
+		ASN_STRUCT_FREE(asn_DEF_RsproPDU, rspro);
 		return -1;
+	}
 	push_and_send(ipa, msg);
 	return 0;
 }