linux-kernel - Re: [PATCH] media: pwc-ctl: remove redundant assignment to variable ret

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Message-ID: <CAAEAJfA2PQOUWbKu=CLPaA-bx2T3MWGpsviq7DBaJ9DxOqCTbg@mail.gmail.com>
Date:   Sat, 11 Apr 2020 20:11:01 -0300
From:   Ezequiel Garcia <ezequiel@...guardiasur.com.ar>
To:     Colin King <colin.king@...onical.com>
Cc:     Hans Verkuil <hverkuil@...all.nl>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        linux-media <linux-media@...r.kernel.org>,
        kernel-janitors@...r.kernel.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] media: pwc-ctl: remove redundant assignment to variable ret

On Fri, 10 Apr 2020 at 10:50, Colin King <colin.king@...onical.com> wrote:
>
> From: Colin Ian King <colin.king@...onical.com>
>
> The variable ret is being initialized with a value that is never read
> and it is being updated later with a new value.  The initialization is
> redundant and can be removed.
>
> Addresses-Coverity: ("Unused value")
> Signed-off-by: Colin Ian King <colin.king@...onical.com>

Reviewed-by: Ezequiel Garcia <ezequiel@...labora.com>

> ---
>  drivers/media/usb/pwc/pwc-ctrl.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/media/usb/pwc/pwc-ctrl.c b/drivers/media/usb/pwc/pwc-ctrl.c
> index 315c55927f5c..cff64d872058 100644
> --- a/drivers/media/usb/pwc/pwc-ctrl.c
> +++ b/drivers/media/usb/pwc/pwc-ctrl.c
> @@ -523,7 +523,7 @@ int pwc_set_leds(struct pwc_device *pdev, int on_value, int off_value)
>  #ifdef CONFIG_USB_PWC_DEBUG
>  int pwc_get_cmos_sensor(struct pwc_device *pdev, int *sensor)
>  {
> -       int ret = -1, request;
> +       int ret, request;
>
>         if (pdev->type < 675)
>                 request = SENSOR_TYPE_FORMATTER1;
> --
> 2.25.1
>