device: return errors from ipc scanner
The code as written will drop any read errors on the floor. Fix that. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
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@ -393,7 +393,7 @@ func (device *Device) IpcSetOperation(r io.Reader) error {
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}
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}
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return nil
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return scanner.Err()
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}
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func (device *Device) IpcGet() (string, error) {
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