linux-kernel - Re: [PATCH] tty/serial: atmel: remove redundant assignment to ret

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Date:   Mon, 12 Aug 2019 17:05:15 +0200
From:   Alexandre Belloni <alexandre.belloni@...tlin.com>
To:     Colin King <colin.king@...onical.com>
Cc:     Richard Genoud <richard.genoud@...il.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jiri Slaby <jslaby@...e.com>,
        Nicolas Ferre <nicolas.ferre@...rochip.com>,
        Ludovic Desroches <ludovic.desroches@...rochip.com>,
        linux-serial@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] tty/serial: atmel: remove redundant assignment to ret

On 09/08/2019 18:40:42+0100, Colin King wrote:
> From: Colin Ian King <colin.king@...onical.com>
> 
> Variable ret is initialized to a value that is never read and it
> is re-assigned later. The initialization is redundant and can be
> removed.
> 
> Addresses-Coverity: ("Unused value")
> Signed-off-by: Colin Ian King <colin.king@...onical.com>
Acked-by: Alexandre Belloni <alexandre.belloni@...tlin.com>

> ---
>  drivers/tty/serial/atmel_serial.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/tty/serial/atmel_serial.c b/drivers/tty/serial/atmel_serial.c
> index 0b4f36905321..19a85d6fe3d2 100644
> --- a/drivers/tty/serial/atmel_serial.c
> +++ b/drivers/tty/serial/atmel_serial.c
> @@ -2888,7 +2888,7 @@ static int atmel_serial_probe(struct platform_device *pdev)
>  	struct atmel_uart_port *atmel_port;
>  	struct device_node *np = pdev->dev.parent->of_node;
>  	void *data;
> -	int ret = -ENODEV;
> +	int ret;
>  	bool rs485_enabled;
>  
>  	BUILD_BUG_ON(ATMEL_SERIAL_RINGSIZE & (ATMEL_SERIAL_RINGSIZE - 1));
> -- 
> 2.20.1
> 

-- 
Alexandre Belloni, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com