Add nakedret linter

.golangci.yml

@@ -20,6 +20,7 @@ linters:
     - govet
     - ineffassign
     - misspell
+    - nakedret
     - nilerr
     - rowserrcheck
     - staticcheck

core/artwork.go

@@ -159,7 +159,7 @@ func (a *artwork) getArtwork(ctx context.Context, id string, path string, size i
 		reader, err = resizeImage(r, size, false)
 	}
 
-	return
+	return reader, err
 }
 
 func resizeImage(reader io.Reader, size int, usePng bool) (io.ReadCloser, error) {

core/media_streamer.go

@@ -163,7 +163,7 @@ func selectTranscodingOptions(ctx context.Context, ds model.DataStore, mf *model
 		format = "raw"
 		bitRate = 0
 	}
-	return
+	return format, bitRate
 }
 
 var (