Re: [PATCH 2/5] altera_uart: Add support for polling mode (IRQ-less)

[Anton Vorontsov <cbouatmailru@gmail.com>]

On Tue, Sep 28, 2010 at 05:45:39PM +0200, Tobias Klauser wrote:
[...]
> > -	ret = request_irq(port->irq, altera_uart_interrupt, IRQF_DISABLED,
> > -			DRV_NAME, port);
> > -	if (ret) {
> > -		pr_err(DRV_NAME ": unable to attach Altera UART %d "
> > -		       "interrupt vector=%d\n", port->line, port->irq);
> > -		return ret;
> > -	}
> > -
> >  	spin_lock_irqsave(&port->lock, flags);
> >  
> >  	/* Enable RX interrupts now */
> > @@ -300,6 +304,19 @@ static int altera_uart_startup(struct uart_port *port)
> >  
> >  	spin_unlock_irqrestore(&port->lock, flags);
> 
> Shouldn't we only enable the RX interrupt if we actually use interrupts?

Why would that matter if we don't use the interrupts? ;-)

But I made the change anyway.

> Also I would retain the order here (first register the interrupt handler
> and then enable the interrupts).

OK, fixed. Thanks!

-- 
Anton Vorontsov
email: cbouatmailru@gmail.com
irc://irc.freenode.net/bd2