linux-kernel - Re: [Outreachy kernel] [PATCH v5] staging: vt6656: add error code handling to unused variable

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Message-ID: <20200330230634.3b905158@elisabeth>
Date:   Mon, 30 Mar 2020 23:06:34 +0200
From:   Stefano Brivio <sbrivio@...hat.com>
To:     "John B. Wyatt IV" <jbwyatt4@...il.com>
Cc:     outreachy-kernel@...glegroups.com,
        Julia Lawall <julia.lawall@...ia.fr>,
        Forest Bond <forest@...ttletooquiet.net>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Quentin Deslandes <quentin.deslandes@...ev.co.uk>,
        Colin Ian King <colin.king@...onical.com>,
        Malcolm Priestley <tvboxspy@...il.com>,
        devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org
Subject: Re: [Outreachy kernel] [PATCH v5] staging: vt6656: add error code
 handling to unused variable

On Mon, 30 Mar 2020 11:45:17 -0700
"John B. Wyatt IV" <jbwyatt4@...il.com> wrote:

> Add error code handling to unused 'ret' variable that was never used.
> Return an error code from functions called within vnt_radio_power_on.
> 
> Issue reported by coccinelle (coccicheck).
> 
> Suggested-by: Quentin Deslandes <quentin.deslandes@...ev.co.uk>
> Suggested-by: Stefano Brivio <sbrivio@...hat.com>
> Reviewed-by: Quentin Deslandes <quentin.deslandes@...ev.co.uk>
> Signed-off-by: John B. Wyatt IV <jbwyatt4@...il.com>
> ---
> v5: Remove Suggested-by: Julia Lawall above seperator line.
>     Remove break; statement in switch block.
>     break; removal checked by both gcc compile and checkpatch.
>
> [...]
>
> @@ -734,14 +738,15 @@ int vnt_radio_power_on(struct vnt_private *priv)
>  	case RF_VT3226:
>  	case RF_VT3226D0:
>  	case RF_VT3342A0:
> -		vnt_mac_reg_bits_on(priv, MAC_REG_SOFTPWRCTL,
> -				    (SOFTPWRCTL_SWPE2 | SOFTPWRCTL_SWPE3));
> +		ret = vnt_mac_reg_bits_on(priv, MAC_REG_SOFTPWRCTL,
> +					  (SOFTPWRCTL_SWPE2 | 
> +					  SOFTPWRCTL_SWPE3));
>  		break;
>  	}
> +	if (ret)
> +		return ret;

Did you send the wrong version perhaps?

-- 
Stefano