Hi,

the patch "serial-02-fixups.patch" introduced following compile error:

  CC [M]  drivers/char/sx.o
drivers/char/sx.c: In function `sx_tiocmset':
drivers/char/sx.c:1761: error: `dtr' undeclared (first use in this function)
drivers/char/sx.c:1761: error: (Each undeclared identifier is reported only 
once
drivers/char/sx.c:1761: error: for each function it appears in.)
drivers/char/sx.c:1756: Warnung: unused variable `cts'

The attached patch fixes it...

   Thomas Schlichter