linux-kernel - Re: [PATCH] ASoC: ti: davinci-mcasp: remove redundant assignment to variable ret

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Date:   Mon, 10 Feb 2020 11:35:13 +0300
From:   Dan Carpenter <dan.carpenter@...cle.com>
To:     Colin King <colin.king@...onical.com>
Cc:     Peter Ujfalusi <peter.ujfalusi@...com>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>, alsa-devel@...a-project.org,
        kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ASoC: ti: davinci-mcasp: remove redundant assignment to
 variable ret

On Sat, Feb 08, 2020 at 09:55:23PM +0000, Colin King wrote:
> From: Colin Ian King <colin.king@...onical.com>
> 
> The assignment to ret is redundant as it is not used in the error
> return path and hence can be removed.
> 
> Addresses-Coverity: ("Unused value")
> Signed-off-by: Colin Ian King <colin.king@...onical.com>
> ---
>  sound/soc/ti/davinci-mcasp.c | 4 +---
>  1 file changed, 1 insertion(+), 3 deletions(-)
> 
> diff --git a/sound/soc/ti/davinci-mcasp.c b/sound/soc/ti/davinci-mcasp.c
> index e1e937eb1dc1..450c394b2882 100644
> --- a/sound/soc/ti/davinci-mcasp.c
> +++ b/sound/soc/ti/davinci-mcasp.c
> @@ -1764,10 +1764,8 @@ static struct davinci_mcasp_pdata *davinci_mcasp_set_pdata_from_of(
>  	} else if (match) {
>  		pdata = devm_kmemdup(&pdev->dev, match->data, sizeof(*pdata),
>  				     GFP_KERNEL);
> -		if (!pdata) {
> -			ret = -ENOMEM;
> +		if (!pdata)
>  			return pdata;

Use a literal NULL for readability.  "return NULL;".

regards,
dan carpenter