TTY: amiserial, simplify set_serial_info
Do not copy whole serial_state. We only need to know whether the speed is to be changed. Hence store the info in advance and use it later. A simple bool is enough. Also remove reduntant assignments and move the tests directly to the 'if'. Signed-off-by: NJiri Slaby <jslaby@suse.cz> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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