Changes the functions pl2303_buf_clear and pl2303_buf_data_avail for
the purpose of keeping them under the 80 column limit, making them
more similar to similar functions and making then simpler.
Signed-off-by: NThiago Galesi <thiagogalesi@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>