Re: [PATCH -next] ASoC: cs42l52: fix the return value ofcs42l52_set_fmt()

From: Mark Brown
Date: Wed Nov 07 2012 - 09:50:40 EST


On Wed, Nov 07, 2012 at 08:38:35PM +0800, Wei Yongjun wrote:
> From: Wei Yongjun <yongjun_wei@xxxxxxxxxxxxxxxxx>
>
> Fix the return value of cs42l52_set_fmt() when clock inversion is
> not allowed and also remove the useless variable ret.

Applied, but you need to work on your changelogs:

What is wrong with the return value?

> u8 iface = 0;
>
> switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
> @@ -822,7 +821,7 @@ static int cs42l52_set_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
> case SND_SOC_DAIFMT_NB_IF:
> break;
> default:
> - ret = -EINVAL;
> + return -EINVAL;
> }
> cs42l52->config.format = iface;
> snd_soc_write(codec, CS42L52_IFACE_CTL1, cs42l52->config.format);
>

This doesn't look like it changes the return value... the actual issue
here is that we don't pay attention to ret later on, we just always
return 0.

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