o Do not blindly UP controller when MTU is changed. Reinitialize controller only if driver is running. o Remove useless ti_stop() in ti_watchdog() since ti_init_locked() always invokes ti_stop().
o Do not blindly UP controller when MTU is changed. Reinitialize controller only if driver is running. o Remove useless ti_stop() in ti_watchdog() since ti_init_locked() always invokes ti_stop().