fix linter issues

database/testing/testing.go

@@ -116,7 +116,6 @@ func TestDrop(t *testing.T, d database.Driver) {
 }
 
 func TestSetVersion(t *testing.T, d database.Driver) {
-	// nolint:maligned
 	testCases := []struct {
 		name            string
 		version         int

database/yugabytedb/yugabytedb.go

@@ -420,8 +420,9 @@ func (c *YugabyteDB) doTxWithRetry(
 		}
 
 		// If we've tried to commit the transaction Rollback just returns sql.ErrTxDone.
-		//nolint:errcheck
-		defer tx.Rollback()
+		defer func() {
+			_ = tx.Rollback()
+		}()
 
 		if err := fn(tx); err != nil {
 			if errIsRetryable(err) {

migrate_test.go

@@ -1339,11 +1339,6 @@ func newMigSeq(migr ...*Migration) migrationSequence {
 	return migr
 }
 
-func (m *migrationSequence) add(migr ...*Migration) migrationSequence { // nolint:unused
-	*m = append(*m, migr...)
-	return *m
-}
-
 func (m *migrationSequence) bodySequence() []string {
 	r := make([]string, 0)
 	for _, v := range *m {

testing/docker.go

@@ -200,7 +200,7 @@ func (d *DockerContainer) Logs() (io.ReadCloser, error) {
 	})
 }
 
-func (d *DockerContainer) portMapping(selectFirst bool, cPort int) (containerPort uint, hostIP string, hostPort uint, err error) { // nolint:unparam
+func (d *DockerContainer) portMapping(selectFirst bool, cPort int) (hostIP string, hostPort uint, err error) {
 	if !d.containerInspected {
 		if err := d.Inspect(); err != nil {
 			d.t.Fatal(err)
@@ -212,29 +212,28 @@ func (d *DockerContainer) portMapping(selectFirst bool, cPort int) (containerPor
 			// Skip ahead until we find the port we want
 			continue
 		}
-		for _, binding := range bindings {
-
+		if len(bindings) > 0 {
+			binding := bindings[0]
 			hostPortUint, err := strconv.ParseUint(binding.HostPort, 10, 64)
 			if err != nil {
-				return 0, "", 0, err
+				return "", 0, err
 			}
-
-			return uint(port.Int()), binding.HostIP, uint(hostPortUint), nil // nolint: staticcheck
+			return bindings[0].HostIP, uint(hostPortUint), nil
 		}
 	}
 
 	if selectFirst {
-		return 0, "", 0, errors.New("no port binding")
+		return "", 0, errors.New("no port binding")
 	} else {
-		return 0, "", 0, errors.New("specified port not bound")
+		return "", 0, errors.New("specified port not bound")
 	}
 }
 
 func (d *DockerContainer) Host() string {
 	if d == nil {
 		panic("Cannot get host for a nil *DockerContainer")
 	}
-	_, hostIP, _, err := d.portMapping(true, -1)
+	hostIP, _, err := d.portMapping(true, -1)
 	if err != nil {
 		d.t.Fatal(err)
 	}
@@ -250,7 +249,7 @@ func (d *DockerContainer) Port() uint {
 	if d == nil {
 		panic("Cannot get port for a nil *DockerContainer")
 	}
-	_, _, port, err := d.portMapping(true, -1)
+	_, port, err := d.portMapping(true, -1)
 	if err != nil {
 		d.t.Fatal(err)
 	}
@@ -261,7 +260,7 @@ func (d *DockerContainer) PortFor(cPort int) uint {
 	if d == nil {
 		panic("Cannot get port for a nil *DockerContainer")
 	}
-	_, _, port, err := d.portMapping(false, cPort)
+	_, port, err := d.portMapping(false, cPort)
 	if err != nil {
 		d.t.Fatal(err)
 	}