linux-kernel - Re: [PATCH][next] drm/i915/display: Fix inconsistent IS_ERR and PTR

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Message-ID: <87pnfuqkai.fsf@intel.com>
Date:   Wed, 08 Jan 2020 13:06:45 +0200
From:   Jani Nikula <jani.nikula@...ux.intel.com>
To:     "Gustavo A. R. Silva" <gustavo@...eddedor.com>,
        Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>,
        Rodrigo Vivi <rodrigo.vivi@...el.com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Manasi Navare <manasi.d.navare@...el.com>,
        Matt Roper <matthew.d.roper@...el.com>
Cc:     intel-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org,
        "Gustavo A. R. Silva" <gustavo@...eddedor.com>
Subject: Re: [PATCH][next] drm/i915/display: Fix inconsistent IS_ERR and PTR_ERR

On Mon, 06 Jan 2020, "Gustavo A. R. Silva" <gustavo@...eddedor.com> wrote:
> Fix inconsistent IS_ERR and PTR_ERR in intel_modeset_all_tiles().
>
> The proper pointer to be passed as argument is crtc_state.
>
> This bug was detected with the help of Coccinelle.

Thanks, already fixed by Dan in commit 953cac3ec55f ("drm/i915: fix an
error code in intel_modeset_all_tiles()").

BR,
Jani.

>
> Fixes: a603f5bd1691 ("drm/i915/dp: Make sure all tiled connectors get added to the state with full modeset")
> Signed-off-by: Gustavo A. R. Silva <gustavo@...eddedor.com>
> ---
>  drivers/gpu/drm/i915/display/intel_display.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
> index da5266e76738..a96bee699a5e 100644
> --- a/drivers/gpu/drm/i915/display/intel_display.c
> +++ b/drivers/gpu/drm/i915/display/intel_display.c
> @@ -14424,7 +14424,7 @@ intel_modeset_all_tiles(struct intel_atomic_state *state, int tile_grp_id)
>  		crtc_state = drm_atomic_get_crtc_state(&state->base,
>  						       conn_state->crtc);
>  		if (IS_ERR(crtc_state)) {
> -			ret = PTR_ERR(conn_state);
> +			ret = PTR_ERR(crtc_state);
>  			break;
>  		}
>  		crtc_state->mode_changed = true;

-- 
Jani Nikula, Intel Open Source Graphics Center