linux-kernel - Re: [PATCH v3 13/28] drm/mediatek: switch to drm_*_get(), drm_*

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Date:   Fri, 11 Aug 2017 15:01:40 +0200
From:   Philipp Zabel <p.zabel@...gutronix.de>
To:     Cihangir Akturk <cakturk@...il.com>
Cc:     CK Hu <ck.hu@...iatek.com>, daniel@...ll.ch,
        linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        David Airlie <airlied@...ux.ie>,
        Matthias Brugger <matthias.bgg@...il.com>,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org
Subject: Re: [PATCH v3 13/28] drm/mediatek: switch to drm_*_get(),
 drm_*_put() helpers

On Fri, 2017-08-11 at 15:32 +0300, Cihangir Akturk wrote:
> Use drm_*_get() and drm_*_put() helpers instead of drm_*_reference()
> and drm_*_unreference() helpers.
> 
> drm_*_reference() and drm_*_unreference() functions are just
> compatibility alias for drm_*_get() and drm_*_put() and should not be
> used by new code. So convert all users of compatibility functions to
> use the new APIs.
> 
> Generated by: scripts/coccinelle/api/drm-get-put.cocci
> 
> Signed-off-by: Cihangir Akturk <cakturk@...il.com>
> ---
>  drivers/gpu/drm/mediatek/mtk_drm_fb.c  | 4 ++--
>  drivers/gpu/drm/mediatek/mtk_drm_gem.c | 2 +-
>  2 files changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_fb.c
> b/drivers/gpu/drm/mediatek/mtk_drm_fb.c
> index d4246c9..0d8d506 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_fb.c
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_fb.c
> @@ -58,7 +58,7 @@ static void mtk_drm_fb_destroy(struct
> drm_framebuffer *fb)
>  
>  	drm_framebuffer_cleanup(fb);
>  
> -	drm_gem_object_unreference_unlocked(mtk_fb->gem_obj);
> +	drm_gem_object_put_unlocked(mtk_fb->gem_obj);
>  
>  	kfree(mtk_fb);
>  }
> @@ -160,6 +160,6 @@ struct drm_framebuffer
> *mtk_drm_mode_fb_create(struct drm_device *dev,
>  	return &mtk_fb->base;
>  
>  unreference:
> -	drm_gem_object_unreference_unlocked(gem);
> +	drm_gem_object_put_unlocked(gem);
>  	return ERR_PTR(ret);
>  }
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_gem.c
> b/drivers/gpu/drm/mediatek/mtk_drm_gem.c
> index 8ec963f..f595ac8 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_gem.c
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_gem.c
> @@ -122,7 +122,7 @@ int mtk_drm_gem_dumb_create(struct drm_file
> *file_priv, struct drm_device *dev,
>  		goto err_handle_create;
>  
>  	/* drop reference from allocate - handle holds it now. */
> -	drm_gem_object_unreference_unlocked(&mtk_gem->base);
> +	drm_gem_object_put_unlocked(&mtk_gem->base);
>  
>  	return 0;
>  

Reviewed-by: Philipp Zabel <p.zabel@...gutronix.de>

regards
Philipp