add missing lock

Author: bachue

internal/configfile/config_file.go

@@ -4,6 +4,7 @@ import (
 	"errors"
 	"path/filepath"
 	"strings"
+	"sync"
 
 	"github.com/BurntSushi/toml"
 	"github.com/qiniu/go-sdk/v7/internal/env"
@@ -18,6 +19,7 @@ type profileConfig struct {
 
 var (
 	profileConfigs      map[string]*profileConfig
+	profileConfigsMutex sync.Mutex
 	ErrInvalidBucketUrl = errors.New("invalid bucket url")
 )
 
@@ -79,6 +81,9 @@ func getProfile() (*profileConfig, error) {
 }
 
 func load() error {
+	profileConfigsMutex.Lock()
+	defer profileConfigsMutex.Unlock()
+
 	if profileConfigs != nil {
 		return nil
 	}