linux-kernel - Re: [PATCH 1/2] ALSA: ice1712: remove unneeded return statement

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Message-ID: <s5h389njfcs.wl-tiwai@suse.de>
Date:	Thu, 13 Nov 2014 16:21:39 +0100
From:	Takashi Iwai <tiwai@...e.de>
To:	Sudip Mukherjee <sudipm.mukherjee@...il.com>
Cc:	alsa-devel@...a-project.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] ALSA: ice1712: remove unneeded return statement

At Thu, 13 Nov 2014 20:44:16 +0530,
Sudip Mukherjee wrote:
> 
> the functions:
> 	snd_ice1712_akm4xxx_build_controls
> 	snd_ice1712_build_pro_mixer
> 	snd_ctl_add
> 	snd_ak4114_build
> 	prodigy192_ak4114_init
> 	snd_ak4113_build
> are all returning either 0 or a negetive error value.
> so we can easily remove the check for a negative value and return
> the value instead.

In doing so, you can rewrite to return directly like
	return xxx();
instead of
	err = xxx();
	return err;

Takashi


> 
> Signed-off-by: Sudip Mukherjee <sudip@...torindia.org>
> ---
> 
> i have not given Jaroslav Kysela <perex@...ex.cz> in the To list,
> as in my last mail, all mails bounced with the error:
> "cant create user output file"
> 
>  sound/pci/ice1712/hoontech.c   |  5 +----
>  sound/pci/ice1712/ice1712.c    | 13 +++----------
>  sound/pci/ice1712/ice1724.c    |  5 +----
>  sound/pci/ice1712/juli.c       |  4 +---
>  sound/pci/ice1712/prodigy192.c |  4 +---
>  sound/pci/ice1712/quartet.c    |  4 +---
>  6 files changed, 8 insertions(+), 27 deletions(-)
> 
> diff --git a/sound/pci/ice1712/hoontech.c b/sound/pci/ice1712/hoontech.c
> index 59e37c5..2c53154 100644
> --- a/sound/pci/ice1712/hoontech.c
> +++ b/sound/pci/ice1712/hoontech.c
> @@ -310,10 +310,7 @@ static int snd_ice1712_value_init(struct snd_ice1712 *ice)
>  
>  	/* ak4524 controls */
>  	err = snd_ice1712_akm4xxx_build_controls(ice);
> -	if (err < 0)
> -		return err;
> -
> -	return 0;
> +	return err;
>  }
>  
>  static int snd_ice1712_ez8_init(struct snd_ice1712 *ice)
> diff --git a/sound/pci/ice1712/ice1712.c b/sound/pci/ice1712/ice1712.c
> index 48a0c33..b97a0f9 100644
> --- a/sound/pci/ice1712/ice1712.c
> +++ b/sound/pci/ice1712/ice1712.c
> @@ -1296,9 +1296,7 @@ static int snd_ice1712_pcm_profi(struct snd_ice1712 *ice, int device, struct snd
>  	}
>  
>  	err = snd_ice1712_build_pro_mixer(ice);
> -	if (err < 0)
> -		return err;
> -	return 0;
> +	return err;
>  }
>  
>  /*
> @@ -1546,9 +1544,7 @@ static int snd_ice1712_ac97_mixer(struct snd_ice1712 *ice)
>  				 "cannot initialize ac97 for consumer, skipped\n");
>  		else {
>  			err = snd_ctl_add(ice->card, snd_ctl_new1(&snd_ice1712_mixer_digmix_route_ac97, ice));
> -			if (err < 0)
> -				return err;
> -			return 0;
> +			return err;
>  		}
>  	}
>  
> @@ -2498,10 +2494,7 @@ static int snd_ice1712_build_controls(struct snd_ice1712 *ice)
>  	if (err < 0)
>  		return err;
>  	err = snd_ctl_add(ice->card, snd_ctl_new1(&snd_ice1712_mixer_pro_peak, ice));
> -	if (err < 0)
> -		return err;
> -
> -	return 0;
> +	return err;
>  }
>  
>  static int snd_ice1712_free(struct snd_ice1712 *ice)
> diff --git a/sound/pci/ice1712/ice1724.c b/sound/pci/ice1712/ice1724.c
> index f633e3b..fa88485 100644
> --- a/sound/pci/ice1712/ice1724.c
> +++ b/sound/pci/ice1712/ice1724.c
> @@ -2498,10 +2498,7 @@ static int snd_vt1724_build_controls(struct snd_ice1712 *ice)
>  	}
>  
>  	err = snd_ctl_add(ice->card, snd_ctl_new1(&snd_vt1724_mixer_pro_peak, ice));
> -	if (err < 0)
> -		return err;
> -
> -	return 0;
> +	return err;
>  }
>  
>  static int snd_vt1724_free(struct snd_ice1712 *ice)
> diff --git a/sound/pci/ice1712/juli.c b/sound/pci/ice1712/juli.c
> index 7a6c078..d6f2fb0 100644
> --- a/sound/pci/ice1712/juli.c
> +++ b/sound/pci/ice1712/juli.c
> @@ -477,9 +477,7 @@ static int juli_add_controls(struct snd_ice1712 *ice)
>  	/* only capture SPDIF over AK4114 */
>  	err = snd_ak4114_build(spec->ak4114, NULL,
>  			ice->pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream);
> -	if (err < 0)
> -		return err;
> -	return 0;
> +	return err;
>  }
>  
>  /*
> diff --git a/sound/pci/ice1712/prodigy192.c b/sound/pci/ice1712/prodigy192.c
> index 1eb151aa..3919aed 100644
> --- a/sound/pci/ice1712/prodigy192.c
> +++ b/sound/pci/ice1712/prodigy192.c
> @@ -758,10 +758,8 @@ static int prodigy192_init(struct snd_ice1712 *ice)
>  			"AK4114 initialized with status %d\n", err);
>  	} else
>  		dev_dbg(ice->card->dev, "AK4114 not found\n");
> -	if (err < 0)
> -		return err;
>  
> -	return 0;
> +	return err;
>  }
>  
>  
> diff --git a/sound/pci/ice1712/quartet.c b/sound/pci/ice1712/quartet.c
> index d4caf9d..3903e05 100644
> --- a/sound/pci/ice1712/quartet.c
> +++ b/sound/pci/ice1712/quartet.c
> @@ -835,9 +835,7 @@ static int qtet_add_controls(struct snd_ice1712 *ice)
>  	/* only capture SPDIF over AK4113 */
>  	err = snd_ak4113_build(spec->ak4113,
>  			ice->pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream);
> -	if (err < 0)
> -		return err;
> -	return 0;
> +	return err;
>  }
>  
>  static inline int qtet_is_spdif_master(struct snd_ice1712 *ice)
> -- 
> 1.8.1.2
> 
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