diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c index 3c7cfac48e3020732d2d02a2516393f1e654857c..8f654ce52570677732364164f17dc5c65ea04e3f 100644 --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -690,7 +690,6 @@ static int acm_tty_write(struct tty_struct *tty, spin_unlock_irqrestore(&acm->write_lock, flags); return count; } - usb_mark_last_busy(acm->dev); stat = acm_start_wb(acm, wb); spin_unlock_irqrestore(&acm->write_lock, flags);