const unsigned char *buf, int count)
{
struct moxa_port *ch = tty->driver_data;
+ unsigned long flags;
int len;
if (ch == NULL)
return 0;
- spin_lock_bh(&moxa_lock);
+ spin_lock_irqsave(&moxa_lock, flags);
len = MoxaPortWriteData(tty, buf, count);
- spin_unlock_bh(&moxa_lock);
+ spin_unlock_irqrestore(&moxa_lock, flags);
set_bit(LOWWAIT, &ch->statusflags);
return len;