linux-kernel - Re: [PATCH linux-next] usb: typec: tcpm: tcpci: Remove the unneeded result variable

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Message-ID: <YwiAvHSNr34nyx/b@kuha.fi.intel.com>
Date:   Fri, 26 Aug 2022 11:13:48 +0300
From:   Heikki Krogerus <heikki.krogerus@...ux.intel.com>
To:     cgel.zte@...il.com
Cc:     linux@...ck-us.net, gregkh@...uxfoundation.org,
        linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
        xupanda <xu.panda@....com.cn>, Zeal Robot <zealci@....com.cn>
Subject: Re: [PATCH linux-next] usb: typec: tcpm: tcpci: Remove the unneeded
 result variable

On Fri, Aug 26, 2022 at 07:48:57AM +0000, cgel.zte@...il.com wrote:
> From: xupanda <xu.panda@....com.cn>
> 
> Return the value regmap_update_bits() directly instead of
> storing it in another redundant variable.
> 
> Reported-by: Zeal Robot <zealci@....com.cn>
> Signed-off-by: xupanda <xu.panda@....com.cn>
> ---
>  drivers/usb/typec/tcpm/tcpci.c | 6 +-----
>  1 file changed, 1 insertion(+), 5 deletions(-)
> 
> diff --git a/drivers/usb/typec/tcpm/tcpci.c b/drivers/usb/typec/tcpm/tcpci.c
> index b2bfcebe218f..4436e9e5e2f7 100644
> --- a/drivers/usb/typec/tcpm/tcpci.c
> +++ b/drivers/usb/typec/tcpm/tcpci.c
> @@ -328,11 +328,9 @@ static int tcpci_set_vconn(struct tcpc_dev *tcpc, bool enable)
>  static int tcpci_enable_auto_vbus_discharge(struct tcpc_dev *dev, bool enable)
>  {
>  	struct tcpci *tcpci = tcpc_to_tcpci(dev);
> -	int ret;
>  
> -	ret = regmap_update_bits(tcpci->regmap, TCPC_POWER_CTRL, TCPC_POWER_CTRL_AUTO_DISCHARGE,
> +	return regmap_update_bits(tcpci->regmap, TCPC_POWER_CTRL, TCPC_POWER_CTRL_AUTO_DISCHARGE,
>  				 enable ? TCPC_POWER_CTRL_AUTO_DISCHARGE : 0);
> -	return ret;
>  }
>  
>  static int tcpci_set_auto_vbus_discharge_threshold(struct tcpc_dev *dev, enum typec_pwr_opmode mode,
> @@ -884,5 +882,3 @@ static struct i2c_driver tcpci_i2c_driver = {
>  };
>  module_i2c_driver(tcpci_i2c_driver);
>  
> -MODULE_DESCRIPTION("USB Type-C Port Controller Interface driver");
> -MODULE_LICENSE("GPL");

Why are you removing those lines, and how is that related to the above
change?

thanks,

-- 
heikki