linux-kernel - Re: [Nouveau] [PATCH 10/40] drm/nouveau/dispnv50/disp: Remove unused variable 'ret' from function returning void

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Message-ID: <CACO55tu=3H=vEcE6zDA951CqQf1wmKJrVMvBy=EEpp+R5MZG0w@mail.gmail.com>
Date:   Mon, 19 Apr 2021 13:46:02 +0200
From:   Karol Herbst <kherbst@...hat.com>
To:     Lee Jones <lee.jones@...aro.org>
Cc:     David Airlie <airlied@...ux.ie>,
        nouveau <nouveau@...ts.freedesktop.org>,
        LKML <linux-kernel@...r.kernel.org>,
        dri-devel <dri-devel@...ts.freedesktop.org>,
        Ben Skeggs <bskeggs@...hat.com>,
        Daniel Vetter <daniel@...ll.ch>
Subject: Re: [Nouveau] [PATCH 10/40] drm/nouveau/dispnv50/disp: Remove unused
 variable 'ret' from function returning void

On Fri, Apr 16, 2021 at 4:38 PM Lee Jones <lee.jones@...aro.org> wrote:
>
> Fixes the following W=1 kernel build warning(s):
>
>  drivers/gpu/drm/nouveau/dispnv50/disp.c: In function ‘nv50_mstm_cleanup’:
>  drivers/gpu/drm/nouveau/dispnv50/disp.c:1357:6: warning: variable ‘ret’ set but not used [-Wunused-but-set-variable]
>

same comment here: we should really check if it's better to handle the
error and report it back that something failed or so..

> Cc: Ben Skeggs <bskeggs@...hat.com>
> Cc: David Airlie <airlied@...ux.ie>
> Cc: Daniel Vetter <daniel@...ll.ch>
> Cc: dri-devel@...ts.freedesktop.org
> Cc: nouveau@...ts.freedesktop.org
> Signed-off-by: Lee Jones <lee.jones@...aro.org>
> ---
>  drivers/gpu/drm/nouveau/dispnv50/disp.c | 5 ++---
>  1 file changed, 2 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/gpu/drm/nouveau/dispnv50/disp.c b/drivers/gpu/drm/nouveau/dispnv50/disp.c
> index 4801aafd9552b..351f954989530 100644
> --- a/drivers/gpu/drm/nouveau/dispnv50/disp.c
> +++ b/drivers/gpu/drm/nouveau/dispnv50/disp.c
> @@ -1386,12 +1386,11 @@ nv50_mstm_cleanup(struct nv50_mstm *mstm)
>  {
>         struct nouveau_drm *drm = nouveau_drm(mstm->outp->base.base.dev);
>         struct drm_encoder *encoder;
> -       int ret;
>
>         NV_ATOMIC(drm, "%s: mstm cleanup\n", mstm->outp->base.base.name);
> -       ret = drm_dp_check_act_status(&mstm->mgr);
> +       drm_dp_check_act_status(&mstm->mgr);
>
> -       ret = drm_dp_update_payload_part2(&mstm->mgr);
> +       drm_dp_update_payload_part2(&mstm->mgr);
>
>         drm_for_each_encoder(encoder, mstm->outp->base.base.dev) {
>                 if (encoder->encoder_type == DRM_MODE_ENCODER_DPMST) {
> --
> 2.27.0
>
> _______________________________________________
> Nouveau mailing list
> Nouveau@...ts.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/nouveau

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