device: correct IPC error number for I/O errors

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>

diff --git a/device/uapi.go b/device/uapi.go
index 160806d5e97f28afa1947c7c9199e32f6eb6587f..90a9952d5eebbec908d941879dd7d6efdca65d4e 100644 (file)
--- a/device/uapi.go
+++ b/device/uapi.go
@@ -168,7 +168,10 @@ func (device *Device) IpcSetOperation(r io.Reader) (err error) {
                }
        }
 
-       return scanner.Err()
+       if err := scanner.Err(); err != nil {
+               return ipcErrorf(ipc.IpcErrorIO, "failed to read input: %w", err)
+       }
+       return nil
 }
 
 func (device *Device) handleDeviceLine(key, value string) error {