use v1.5.0

go.mod

@@ -34,7 +34,7 @@ require (
 	github.com/jgautheron/goconst v0.0.0-20201117150253-ccae5bf973f3
 	github.com/jingyugao/rowserrcheck v0.0.0-20210130005344-c6a0c12dd98d
 	github.com/jirfag/go-printf-func-name v0.0.0-20191110105641-45db9963cdd3
-	github.com/kisielk/errcheck v1.5.0-alpha.0.20201210184435-7e1276f76cf6
+	github.com/kisielk/errcheck v1.5.0
 	github.com/kulti/thelper v0.4.0
 	github.com/kunwardeep/paralleltest v1.0.2
 	github.com/kyoh86/exportloopref v0.1.8
@@ -84,3 +84,5 @@ require (
 	mvdan.cc/lint v0.0.0-20170908181259-adc824a0674b // indirect
 	mvdan.cc/unparam v0.0.0-20200501210554-b37ab49443f7
 )
+
+replace github.com/kisielk/errcheck => ../errcheck

pkg/golinters/errcheck.go

@@ -55,25 +55,31 @@ func NewErrcheck() *goanalysis.Linter {
 				TypesInfo: pass.TypesInfo,
 			}
 
-			errcheckIssues := checker.CheckPackage(pkg)
+			errcheckIssues := checker.CheckPackage(pkg).Unique()
 			if len(errcheckIssues.UncheckedErrors) == 0 {
 				return nil, nil
 			}
 
-			issues := make([]goanalysis.Issue, 0, len(errcheckIssues.UncheckedErrors))
-			for _, i := range errcheckIssues.UncheckedErrors {
+			issues := make([]goanalysis.Issue, len(errcheckIssues.UncheckedErrors))
+			for i, err := range errcheckIssues.UncheckedErrors {
 				var text string
-				if i.FuncName != "" {
-					text = fmt.Sprintf("Error return value of %s is not checked", formatCode(i.FuncName, lintCtx.Cfg))
+				if err.FuncName != "" {
+					text = fmt.Sprintf(
+						"Error return value of %s is not checked",
+						formatCode(err.SelectorName, lintCtx.Cfg),
+					)
 				} else {
 					text = "Error return value is not checked"
 				}
 
-				issues = append(issues, goanalysis.NewIssue(&result.Issue{
-					FromLinter: linterName,
-					Text:       text,
-					Pos:        i.Pos,
-				}, pass))
+				issues[i] = goanalysis.NewIssue(
+					&result.Issue{
+						FromLinter: linterName,
+						Text:       text,
+						Pos:        err.Pos,
+					},
+					pass,
+				)
 			}
 
 			mu.Lock()

test/testdata/errcheck_exclude.go

@@ -13,6 +13,6 @@ func TestErrcheckExclude() []byte {
 }
 
 func TestErrcheckNoExclude() []byte {
-	ret, _ := ioutil.ReadAll(nil) // ERROR "Error return value of `io/ioutil.ReadAll` is not checked"
+	ret, _ := ioutil.ReadAll(nil) // ERROR "Error return value of `ioutil.ReadAll` is not checked"
 	return ret
 }

test/testdata/errcheck_ignore.go

@@ -23,6 +23,6 @@ func TestErrcheckIgnoreIoutil() []byte {
 }
 
 func TestErrcheckNoIgnoreIoutil() []byte {
-	ret, _ := ioutil.ReadAll(nil) // ERROR "Error return value of `io/ioutil.ReadAll` is not checked"
+	ret, _ := ioutil.ReadAll(nil) // ERROR "Error return value of `ioutil.ReadAll` is not checked"
 	return ret
 }