linux-kernel - Re: [PATCH] staging: wlan-ng: collect return status without variable

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Message-ID: <20190510105754.GA18105@kadam>
Date:   Fri, 10 May 2019 13:57:54 +0300
From:   Dan Carpenter <dan.carpenter@...cle.com>
To:     Hariprasad Kelam <hariprasad.kelam@...il.com>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Tim Collier <osdevtc@...il.com>,
        Chris Opperman <eklikeroomys@...il.com>,
        devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] staging: wlan-ng: collect return status without variable

On Fri, May 10, 2019 at 08:09:00AM +0530, Hariprasad Kelam wrote:
> diff --git a/drivers/staging/wlan-ng/cfg80211.c b/drivers/staging/wlan-ng/cfg80211.c
> index 8a862f7..5dad5ac 100644
> --- a/drivers/staging/wlan-ng/cfg80211.c
> +++ b/drivers/staging/wlan-ng/cfg80211.c
> @@ -231,17 +231,12 @@ static int prism2_set_default_key(struct wiphy *wiphy, struct net_device *dev,
>  {
>  	struct wlandevice *wlandev = dev->ml_priv;
>  
> -	int err = 0;
> -	int result = 0;
> -
> -	result = prism2_domibset_uint32(wlandev,
> -		DIDMIB_DOT11SMT_PRIVACYTABLE_WEPDEFAULTKEYID,
> -		key_index);
> -
> -	if (result)
> -		err = -EFAULT;
> -
> -	return err;
> +	if (prism2_domibset_uint32(wlandev,
> +				   DIDMIB_DOT11SMT_PRIVACYTABLE_WEPDEFAULTKEYID,
> +				   key_index))
> +		return -EFAULT;
> +	else
> +		return 0;

We should just preserve the error codes from prism2_domibset_uint32().

	return prism2_domibset_uint32(dev->ml_priv,
				DIDMIB_DOT11SMT_PRIVACYTABLE_WEPDEFAULTKEYID,
				key_index);

regards,
dan carpenter