linux-kernel - Re: [PATCH] staging: media: imx: remove unnecessary return variable

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <CAOMZO5Adkz2ZZaWF1VQgTZ43LB-+MqLxp+smS_zFBSJK+x7bjA@mail.gmail.com>
Date:   Tue, 3 Jan 2023 08:50:51 -0300
From:   Fabio Estevam <festevam@...il.com>
To:     Deepak R Varma <drv@...lo.com>
Cc:     Steve Longerbeam <slongerbeam@...il.com>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        NXP Linux Team <linux-imx@....com>,
        linux-media@...r.kernel.org, linux-staging@...ts.linux.dev,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Saurabh Singh Sengar <ssengar@...rosoft.com>,
        Praveen Kumar <kumarpraveen@...ux.microsoft.com>
Subject: Re: [PATCH] staging: media: imx: remove unnecessary return variable

On Tue, Jan 3, 2023 at 8:45 AM Deepak R Varma <drv@...lo.com> wrote:
>
> The function imx_media_fim_set_stream() can directly return 0 instead of
> using a ret variable which never changes its value. Issue identified
> using the returnvar.cocci Coccinelle semantic patch.
>
> Signed-off-by: Deepak R Varma <drv@...lo.com>
> ---
>  drivers/staging/media/imx/imx-media-fim.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/drivers/staging/media/imx/imx-media-fim.c b/drivers/staging/media/imx/imx-media-fim.c
> index fb6590dcfc36..e719227d4323 100644
> --- a/drivers/staging/media/imx/imx-media-fim.c
> +++ b/drivers/staging/media/imx/imx-media-fim.c
> @@ -373,7 +373,6 @@ int imx_media_fim_set_stream(struct imx_media_fim *fim,
>                              bool on)
>  {
>         unsigned long flags;
> -       int ret = 0;
>
>         v4l2_ctrl_lock(fim->ctrl[FIM_CL_ENABLE]);
>
> @@ -393,7 +392,7 @@ int imx_media_fim_set_stream(struct imx_media_fim *fim,
>         fim->stream_on = on;
>  out:
>         v4l2_ctrl_unlock(fim->ctrl[FIM_CL_ENABLE]);
> -       return ret;
> +       return 0;

Maybe you could change imx_media_fim_set_stream() to a void function instead?