Hi Marcello,

Here's the split-off patch you requested.

In several drivers, the closing_wait and close_delay values are written 
to a struct serial_state by TIOCSSERIAL, but the values used in the 
close routine are read from a struct async_struct, with no code to 
transfer of values between the two structures.  This patch ignores the 
members in struct async_struct and uses the values from struct serial_state.

-- Ian.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>