linux-kernel - Re: [PATCH] staging: r8188eu: drop return value from receive

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Date:   Mon, 27 Jun 2022 11:06:52 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Martin Kaiser <martin@...ser.cx>
Cc:     Larry Finger <Larry.Finger@...inger.net>,
        Phillip Potter <phil@...lpotter.co.uk>,
        Michael Straube <straube.linux@...il.com>,
        Pavel Skripkin <paskripkin@...il.com>,
        linux-staging@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] staging: r8188eu: drop return value from
 receive_disconnect

On Sun, Jun 26, 2022 at 08:07:34PM +0200, Martin Kaiser wrote:
> The receive_disconnect function always returns _SUCCESS. None of the
> callers checks the return value. We can remove it.
> 
> Signed-off-by: Martin Kaiser <martin@...ser.cx>
> ---
>  drivers/staging/r8188eu/core/rtw_mlme_ext.c    | 5 ++---
>  drivers/staging/r8188eu/include/rtw_mlme_ext.h | 3 +--
>  2 files changed, 3 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/staging/r8188eu/core/rtw_mlme_ext.c b/drivers/staging/r8188eu/core/rtw_mlme_ext.c
> index cce0575e93b7..fc6e06d7b5ca 100644
> --- a/drivers/staging/r8188eu/core/rtw_mlme_ext.c
> +++ b/drivers/staging/r8188eu/core/rtw_mlme_ext.c
> @@ -6191,14 +6191,14 @@ void start_clnt_assoc(struct adapter *padapter)
>  	set_link_timer(pmlmeext, REASSOC_TO);
>  }
>  
> -unsigned int receive_disconnect(struct adapter *padapter, unsigned char *MacAddr, unsigned short reason)
> +void receive_disconnect(struct adapter *padapter, unsigned char *MacAddr, unsigned short reason)
>  {
>  	struct mlme_ext_priv	*pmlmeext = &padapter->mlmeextpriv;
>  	struct mlme_ext_info	*pmlmeinfo = &pmlmeext->mlmext_info;
>  
>  	/* check A3 */
>  	if (!(!memcmp(MacAddr, get_my_bssid(&pmlmeinfo->network), ETH_ALEN)))
> -		return _SUCCESS;
> +		return;

Shouldn't this check return an error instead of success?  If not, what
exactly is this checking this for?

thanks,

greg k-h