linux-kernel - Re: [PATCH 6/6] mfd: smsc-ece1099: Return directly after a function failure in smsc_i2c

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Date:	Tue, 28 Jun 2016 16:08:29 +0100
From:	Lee Jones <lee.jones@...aro.org>
To:	SF Markus Elfring <elfring@...rs.sourceforge.net>
Cc:	Tony Lindgren <tony@...mide.com>, linux-omap@...r.kernel.org,
	LKML <linux-kernel@...r.kernel.org>,
	kernel-janitors@...r.kernel.org,
	Julia Lawall <julia.lawall@...6.fr>
Subject: Re: [PATCH 6/6] mfd: smsc-ece1099: Return directly after a function
 failure in smsc_i2c_probe()

On Sun, 26 Jun 2016, SF Markus Elfring wrote:

> From: Markus Elfring <elfring@...rs.sourceforge.net>
> Date: Sun, 26 Jun 2016 14:30:46 +0200
> 
> This issue was detected by using the Coccinelle software.
> 
> Return directly if a call of the function "devm_regmap_init_i2c"
> or "regmap_write" failed.
> 
> Delete the jump label "err" then.
> 
> Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
> ---
>  drivers/mfd/smsc-ece1099.c | 9 +++------
>  1 file changed, 3 insertions(+), 6 deletions(-)

Applied, thanks.

> diff --git a/drivers/mfd/smsc-ece1099.c b/drivers/mfd/smsc-ece1099.c
> index 2aaf89f..cd18c09 100644
> --- a/drivers/mfd/smsc-ece1099.c
> +++ b/drivers/mfd/smsc-ece1099.c
> @@ -46,10 +46,8 @@ static int smsc_i2c_probe(struct i2c_client *i2c,
>  	}
>  
>  	smsc->regmap = devm_regmap_init_i2c(i2c, &smsc_regmap_config);
> -	if (IS_ERR(smsc->regmap)) {
> -		ret = PTR_ERR(smsc->regmap);
> -		goto err;
> -	}
> +	if (IS_ERR(smsc->regmap))
> +		return PTR_ERR(smsc->regmap);
>  
>  	i2c_set_clientdata(i2c, smsc);
>  	smsc->dev = &i2c->dev;
> @@ -68,7 +66,7 @@ static int smsc_i2c_probe(struct i2c_client *i2c,
>  
>  	ret = regmap_write(smsc->regmap, SMSC_CLK_CTRL, smsc->clk);
>  	if (ret)
> -		goto err;
> +		return ret;
>  
>  #ifdef CONFIG_OF
>  	if (i2c->dev.of_node)
> @@ -76,7 +74,6 @@ static int smsc_i2c_probe(struct i2c_client *i2c,
>  					   NULL, NULL, &i2c->dev);
>  #endif
>  
> -err:
>  	return ret;
>  }
>  

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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