[alsa-devel] [PATCH V2 01/10] ASoc: mxs: add mxs-pcm driver

[Dong Aisheng-B29396]

> -----Original Message-----
> From: Mark Brown [mailto:broonie at opensource.wolfsonmicro.com]
> Sent: Wednesday, July 13, 2011 7:27 AM
> To: Dong Aisheng-B29396
> Cc: alsa-devel at alsa-project.org; linux-arm-kernel at lists.infradead.org;
> lrg at ti.com; s.hauer at pengutronix.de; u.kleine-koenig at pengutronix.de
> Subject: Re: [PATCH V2 01/10] ASoc: mxs: add mxs-pcm driver
> 
> On Tue, Jul 12, 2011 at 11:04:36PM +0800, Dong Aisheng wrote:
> 
> > +	if (dai->driver->capture.channels_min) {
> > +		ret = mxs_pcm_preallocate_dma_buffer(pcm,
> > +			SNDRV_PCM_STREAM_CAPTURE);
> > +		if (ret)
> > +			goto out;
> > +	}
> 
> For robustness replace the channels_min check with a check for the
> relevant substream being present (see pxa2xx-pcm.c for a recent example).
Thanks for the reminder.
I will check it.

Regards
Dong Aisheng