serial: fix memory leak in case of error out.
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@ -450,6 +450,7 @@ BOOL serial_tty_read(SERIAL_TTY* tty, BYTE* buffer, UINT32* Length)
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tcsetattr(tty->fd, TCSANOW, ptermios);
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tty->timeout = timeout;
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free(ptermios);
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}
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ZeroMemory(buffer, *Length);
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