lint: make checks

Signed-off-by: chenchanglew <[email protected]>

ecc_go/chaincode/enclave_go/skvs_stub.go

@@ -8,6 +8,7 @@ package enclave_go
 
 import (
 	"crypto/sha256"
+	"fmt"
 
 	"github.com/hyperledger/fabric-chaincode-go/shim"
 	"github.com/hyperledger/fabric-private-chaincode/internal/protos"
@@ -30,7 +31,7 @@ func (e *skvsStub) ChaincodeInvoke(stub shim.ChaincodeStubInterface, chaincodeRe
 
 	signedProposal, err := stub.GetSignedProposal()
 	if err != nil {
-		shim.Error(err.Error())
+		return nil, fmt.Errorf("cannot get signed proposal: %s", err.Error())
 	}
 
 	if err := e.verifySignedProposal(stub, chaincodeRequestMessageBytes); err != nil {

ecc_go/chaincode/enclave_go/skvs_stub_Interface.go

@@ -51,6 +51,10 @@ func (s *SkvsStubInterface) InitSKVS() error {
 		logger.Warningf("SKVS has default value, loading current value.")
 
 		err = json.Unmarshal(value, &s.allDataOld)
+		if err != nil {
+			logger.Errorf("SKVS Json unmarshal error: %s", err)
+			return err
+		}
 		err = json.Unmarshal(value, &s.allDataNew)
 		if err != nil {
 			logger.Errorf("SKVS Json unmarshal error: %s", err)
@@ -65,7 +69,7 @@ func (s *SkvsStubInterface) InitSKVS() error {
 func (s *SkvsStubInterface) GetState(key string) ([]byte, error) {
 	logger.Warningf("Calling Get State (Start), key: %s, alldataOld: %s", key, s.allDataOld)
 	value, found := s.allDataOld[key]
-	if found != true {
+	if !found {
 		return nil, errors.New("skvs allDataOld key not found")
 	}
 	logger.Warningf("Calling Get State (End), key: %s, value: %x", key, value)

ecc_go/chaincode/singleKVS.go

@@ -18,6 +18,7 @@ import (
 var logger = flogging.MustGetLogger("enclave_go")
 
 func NewSkvsChaincode(cc shim.Chaincode) *chaincode.EnclaveChaincode {
+	logger.Info("Creating new SKVS Chaincode")
 	ecc := &chaincode.EnclaveChaincode{
 		Enclave:   enclave_go.NewSkvsStub(cc),
 		Validator: endorsement.NewValidator(),