address comment https://go-review.googlesource.com/c/oauth2/+/450155/…

…comment/a17553ee_612942c0/
golang · Mar 5, 2023 · 66b50b5 · 66b50b5
1 parent 8c7208a
commit 66b50b5
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/oauth2.go b/oauth2.go
@@ -270,7 +270,10 @@ func (c *Config) Poll(ctx context.Context, da *DeviceAuthResponse, opts ...AuthC
 			return tok, nil
 		}
 
-		e, _ := err.(*RetrieveError)
+		e, ok := err.(*RetrieveError)
+		if !ok {
+			return nil, err
+		}
 		switch e.ErrorCode {
 		case errSlowDown:
 			interval += 5