linux-kernel - Re: [alsa-devel] Fwd: [PATCH 7/9] ASoC: Blackfin: I2S CPU DAI driver

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Message-ID: <20081009104359.GA31180@sirena.org.uk>
Date:	Thu, 9 Oct 2008 11:44:01 +0100
From:	Mark Brown <broonie@...ena.org.uk>
To:	John Kacur <jkacur@...il.com>
Cc:	Bryan Wu <cooloney@...nel.org>, alsa-devel@...a-project.org,
	linux-kernel@...r.kernel.org, Cliff Cai <cliff.cai@...log.com>
Subject: Re: [alsa-devel] Fwd: [PATCH 7/9] ASoC: Blackfin: I2S CPU DAI driver

On Thu, Oct 09, 2008 at 08:58:08AM +0200, John Kacur wrote:
> On Thu, Sep 4, 2008 at 4:43 PM, Mark Brown
> <broonie@...nsource.wolfsonmicro.com> wrote:

> code, and IMO make it more readable, something like this?
> +       switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
> +       case SND_SOC_DAIFMT_CBM_CFM: /* Passing Case */
> +               break;
> +       case SND_SOC_DAIFMT_CBS_CFS: /* Failing Cases */
> +       case SND_SOC_DAIFMT_CBM_CFS:
> +       case SND_SOC_DAIFMT_CBS_CFM:
> +               ret = -EINVAL;
> +               break;
> +       default:
> +               printk(KERN_INFO "Unknown SND_SOC_DAIFMT kind\n");
> +               ret = -EINVAL;
> +               break;
> +       }

Yes, that's better - I'd remove the comments (they don't add much) and
the prinkt() should be a KERN_ERR or higher severity since this should
only happen as a result of a buggy machine driver.  You could also just
have a single default: for the unsupported types.
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