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Date:   Thu, 15 Apr 2021 11:16:23 +0200
From:   Fabio Aiuto <fabioaiuto83@gmail.com>
To:     Lee Jones <lee.jones@linaro.org>
Cc:     linux-kernel@vger.kernel.org,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Stanley@BB.SD3, linux-staging@lists.linux.dev
Subject: Re: [PATCH 57/57] staging: rtl8723bs: hal: sdio_halinit: Remove
 unused variable 'ret'
Message-ID: <20210415091622.GC1431@agape.jhs>
References: <20210414181129.1628598-1-lee.jones@linaro.org>
 <20210414181129.1628598-58-lee.jones@linaro.org>
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On Wed, Apr 14, 2021 at 07:11:29PM +0100, Lee Jones wrote:
> Fixes the following W=1 kernel build warning(s):
> 
>  drivers/staging/rtl8723bs/hal/sdio_halinit.c: In function ‘CardDisableRTL8723BSdio’:
>  drivers/staging/rtl8723bs/hal/sdio_halinit.c:881:5: warning: variable ‘ret’ set but not used [-Wunused-but-set-variable]
>  drivers/staging/rtl8723bs/hal/sdio_halinit.c: In function ‘CardDisableRTL8723BSdio’:
>  drivers/staging/rtl8723bs/hal/sdio_halinit.c:881:5: warning: variable ‘ret’ set but not used [-Wunused-but-set-variable]
>  drivers/staging/rtl8723bs/hal/sdio_halinit.c: In function ‘CardDisableRTL8723BSdio’:
>  drivers/staging/rtl8723bs/hal/sdio_halinit.c:881:5: warning: variable ‘ret’ set but not used [-Wunused-but-set-variable]
>  drivers/staging/rtl8723bs/hal/sdio_halinit.c: In function ‘CardDisableRTL8723BSdio’:
>  drivers/staging/rtl8723bs/hal/sdio_halinit.c:881:5: warning: variable ‘ret’ set but not used [-Wunused-but-set-variable]
>  drivers/staging/rtl8723bs/hal/sdio_halinit.c: In function ‘CardDisableRTL8723BSdio’:
>  drivers/staging/rtl8723bs/hal/sdio_halinit.c:881:5: warning: variable ‘ret’ set but not used [-Wunused-but-set-variable]
> 
> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> Cc: Fabio Aiuto <fabioaiuto83@gmail.com>
> Cc: Stanley@BB.SD3
> Cc: linux-staging@lists.linux.dev
> Signed-off-by: Lee Jones <lee.jones@linaro.org>
> ---
>  drivers/staging/rtl8723bs/hal/sdio_halinit.c | 6 ++----
>  1 file changed, 2 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/staging/rtl8723bs/hal/sdio_halinit.c b/drivers/staging/rtl8723bs/hal/sdio_halinit.c
> index f6d734dd1a24f..60d3d6d1ba678 100644
> --- a/drivers/staging/rtl8723bs/hal/sdio_halinit.c
> +++ b/drivers/staging/rtl8723bs/hal/sdio_halinit.c
> @@ -878,10 +878,9 @@ static void CardDisableRTL8723BSdio(struct adapter *padapter)
>  {
>  	u8 u1bTmp;
>  	u8 bMacPwrCtrlOn;
> -	u8 ret = _FAIL;
>  
>  	/*  Run LPS WL RFOFF flow */
> -	ret = HalPwrSeqCmdParsing(padapter, PWR_CUT_ALL_MSK, PWR_FAB_ALL_MSK, PWR_INTF_SDIO_MSK, rtl8723B_enter_lps_flow);
> +	HalPwrSeqCmdParsing(padapter, PWR_CUT_ALL_MSK, PWR_FAB_ALL_MSK, PWR_INTF_SDIO_MSK, rtl8723B_enter_lps_flow);
>  
>  	/* 	==== Reset digital sequence   ====== */
>  
> @@ -909,9 +908,8 @@ static void CardDisableRTL8723BSdio(struct adapter *padapter)
>  	/* 	==== Reset digital sequence end ====== */
>  
>  	bMacPwrCtrlOn = false;	/*  Disable CMD53 R/W */
> -	ret = false;
>  	rtw_hal_set_hwreg(padapter, HW_VAR_APFM_ON_MAC, &bMacPwrCtrlOn);
> -	ret = HalPwrSeqCmdParsing(padapter, PWR_CUT_ALL_MSK, PWR_FAB_ALL_MSK, PWR_INTF_SDIO_MSK, rtl8723B_card_disable_flow);
> +	HalPwrSeqCmdParsing(padapter, PWR_CUT_ALL_MSK, PWR_FAB_ALL_MSK, PWR_INTF_SDIO_MSK, rtl8723B_card_disable_flow);
>  }
>  
>  static u32 rtl8723bs_hal_deinit(struct adapter *padapter)
> -- 
> 2.27.0
> 

perhaps it's better to check the return value and return it
to the caller if something goes wrong,

https://lore.kernel.org/linux-staging/YHQVKPOoGS3auAeQ@kroah.com/

thank you,

fabio