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![Daeseok Youn](https://secure.gravatar.com/avatar/97f841b62c60631e53b8d672ea7507ed.jpg?s=96&d=mm)
Daeseok Youn committed 1cd7c06213e
staging: dgnc: remove useless variables The dgnc_major_serial_registered and dgnc_major_serial_registered do not need to use to check whether the tty driver is registered or not. These variables are used only in dgnc_cleanup_tty() function, This function will be called normally with initialized board structure. It means the dgnc_cleanup_tty() cannot be called with unregistered tty. Signed-off-by: Daeseok Youn <daeseok.youn@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>