linux-kernel - Re: [PATCH -mm v4 6/9] atmel_serial: Split the interrupt handler

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Message-ID: <47A856AF.5010202@gandalf.sssup.it>
Date:	Tue, 05 Feb 2008 13:29:35 +0100
From:	michael <trimarchi@...dalf.sssup.it>
To:	Haavard Skinnemoen <hskinnemoen@...el.com>
CC:	Remy Bohmer <linux@...mer.net>, fabio@...dalf.sssup.it,
	Andrew Victor <linux@...im.org.za>,
	Chip Coldwell <coldwell@...hat.com>,
	Marc Pignat <marc.pignat@...s.ch>,
	David Brownell <david-b@...bell.net>,
	linux-kernel@...r.kernel.org, Alan Cox <alan@...rguk.ukuu.org.uk>
Subject: Re: [PATCH -mm v4 6/9] atmel_serial: Split the interrupt handler

hi,

> diff --git a/drivers/serial/atmel_serial.c b/drivers/serial/atmel_serial.c
> index cb70cc5..f310a80 100644
> --- a/drivers/serial/atmel_serial.c
> +++ b/drivers/serial/atmel_serial.c
> @@ -552,7 +552,7 @@ static irqreturn_t atmel_interrupt(int irq, void *dev_id)
>  		atmel_handle_transmit(port, pending);
>  	} while (pass_counter++ < ATMEL_ISR_PASS_LIMIT);
>  
> -	return IRQ_HANDLED;
> +	return pass_counter ? IRQ_HANDLED : IRQ_NONE;
>  }
>  
>  /*
>
>   
Just one question:
Receiving with hardware handshake works without PDC?

Regards Michael

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