linux-kernel - Re: [PATCH] watchdog: diag288_wdt: Remove redundant assignment

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Date:   Wed, 3 Feb 2021 04:33:37 -0800
From:   Guenter Roeck <linux@...ck-us.net>
To:     angkery <angkery@....com>, wim@...ux-watchdog.org
Cc:     linux-watchdog@...r.kernel.org, linux-kernel@...r.kernel.org,
        Junlin Yang <yangjunlin@...ong.com>
Subject: Re: [PATCH] watchdog: diag288_wdt: Remove redundant assignment

On 2/3/21 4:24 AM, angkery wrote:
> From: Junlin Yang <yangjunlin@...ong.com>
> 
> The assign for 'ret' is redundant and can be removed,
> because it will be assigned before use.
> 
> Signed-off-by: Junlin Yang <yangjunlin@...ong.com>

Reviewed-by: Guenter Roeck <linux@...ck-us.net>

> ---
>  drivers/watchdog/diag288_wdt.c | 4 ----
>  1 file changed, 4 deletions(-)
> 
> diff --git a/drivers/watchdog/diag288_wdt.c b/drivers/watchdog/diag288_wdt.c
> index aafc8d9..4cb1087 100644
> --- a/drivers/watchdog/diag288_wdt.c
> +++ b/drivers/watchdog/diag288_wdt.c
> @@ -118,8 +118,6 @@ static int wdt_start(struct watchdog_device *dev)
>  	if (test_and_set_bit(DIAG_WDOG_BUSY, &wdt_status))
>  		return -EBUSY;
>  
> -	ret = -ENODEV;
> -
>  	if (MACHINE_IS_VM) {
>  		ebc_cmd = kmalloc(MAX_CMDLEN, GFP_KERNEL);
>  		if (!ebc_cmd) {
> @@ -167,8 +165,6 @@ static int wdt_ping(struct watchdog_device *dev)
>  	int ret;
>  	unsigned int func;
>  
> -	ret = -ENODEV;
> -
>  	if (MACHINE_IS_VM) {
>  		ebc_cmd = kmalloc(MAX_CMDLEN, GFP_KERNEL);
>  		if (!ebc_cmd)
>