Remove redundant if ...; err != nil; return pattern

cmd/restic/main.go

@@ -63,11 +63,7 @@ directories in an encrypted repository stored on different backends.
 
 		// run the debug functions for all subcommands (if build tag "debug" is
 		// enabled)
-		if err := runDebug(); err != nil {
-			return err
-		}
-
-		return nil
+		return runDebug()
 	},
 }
 

internal/backend/b2/b2.go

@@ -306,10 +306,7 @@ func (be *b2Backend) List(ctx context.Context, t restic.FileType, fn func(restic
 			return err
 		}
 	}
-	if err := iter.Err(); err != nil {
-		return err
-	}
-	return nil
+	return iter.Err()
 }
 
 // Delete removes all restic keys in the bucket. It will not remove the bucket itself.

internal/restic/node.go

@@ -605,11 +605,7 @@ func (node *Node) fillExtra(path string, fi os.FileInfo) error {
 		return errors.Errorf("invalid node type %q", node.Type)
 	}
 
-	if err := node.fillExtendedAttributes(path); err != nil {
-		return err
-	}
-
-	return nil
+	return node.fillExtendedAttributes(path)
 }
 
 func (node *Node) fillExtendedAttributes(path string) error {