diff --git a/cmd/utils.go b/cmd/utils.go
index d5a44c2b2..30d6d0e3b 100644
--- a/cmd/utils.go
+++ b/cmd/utils.go
@@ -42,7 +42,7 @@ import (
 	"sync"
 	"time"
 
-	humanize "github.com/dustin/go-humanize"
+	"github.com/dustin/go-humanize"
 	"github.com/gorilla/mux"
 	"github.com/minio/madmin-go"
 	miniogopolicy "github.com/minio/minio-go/v7/pkg/policy"
diff --git a/internal/ioutil/odirect_reader.go b/internal/ioutil/odirect_reader.go
index aaffca784..c51f82fc7 100644
--- a/internal/ioutil/odirect_reader.go
+++ b/internal/ioutil/odirect_reader.go
@@ -122,10 +122,15 @@ func (o *ODirectReader) Read(buf []byte) (n int, err error) {
 
 // Close - Release the buffer and close the file.
 func (o *ODirectReader) Close() error {
-	if o.SmallFile {
-		ODirectPoolSmall.Put(o.bufp)
-	} else {
-		ODirectPoolLarge.Put(o.bufp)
+	if o.bufp != nil {
+		if o.SmallFile {
+			ODirectPoolSmall.Put(o.bufp)
+		} else {
+			ODirectPoolLarge.Put(o.bufp)
+		}
+		o.bufp = nil
+		o.buf = nil
 	}
+	o.err = errors.New("internal error: ODirectReader Read after Close")
 	return o.File.Close()
 }