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

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Date:   Fri, 25 Sep 2020 10:35:12 -0500
From:   "Gustavo A. R. Silva" <gustavo@...eddedor.com>
To:     "Gustavo A. R. Silva" <gustavoars@...nel.org>,
        Jani Nikula <jani.nikula@...ux.intel.com>,
        Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>,
        Rodrigo Vivi <rodrigo.vivi@...el.com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Thomas Hellström <thomas.hellstrom@...el.com>
Cc:     intel-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH][next] drm/i915: Fix inconsistent IS_ERR and PTR_ERR

Hi all,

Friendly ping: who can take this?

Thanks
--
Gustavo

On 9/10/20 05:21, Gustavo A. R. Silva wrote:
> Fix inconsistent IS_ERR and PTR_ERR in i915_gem_object_copy_blt().
> 
> The proper pointer to be passed as argument to PTR_ERR() is vma[1].
> 
> This bug was detected with the help of Coccinelle.
> 
> Fixes: 6b05030496f7 ("drm/i915: Convert i915_gem_object/client_blt.c to use ww locking as well, v2.")
> Signed-off-by: Gustavo A. R. Silva <gustavoars@...nel.org>
> ---
>  drivers/gpu/drm/i915/gem/i915_gem_object_blt.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/i915/gem/i915_gem_object_blt.c b/drivers/gpu/drm/i915/gem/i915_gem_object_blt.c
> index d93eb36160c9..aee7ad3cc3c6 100644
> --- a/drivers/gpu/drm/i915/gem/i915_gem_object_blt.c
> +++ b/drivers/gpu/drm/i915/gem/i915_gem_object_blt.c
> @@ -364,7 +364,7 @@ int i915_gem_object_copy_blt(struct drm_i915_gem_object *src,
>  
>  	vma[1] = i915_vma_instance(dst, vm, NULL);
>  	if (IS_ERR(vma[1]))
> -		return PTR_ERR(vma);
> +		return PTR_ERR(vma[1]);
>  
>  	i915_gem_ww_ctx_init(&ww, true);
>  	intel_engine_pm_get(ce->engine);
>