linux-kernel - Re: [PATCH] drm/bridge: waveshare-dsi: Fix bailout for devm_drm_bridge

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Message-ID: <n43pa62bneykoeo3c2ne53ksrozftohmo4dnq5ifnchgrvwcdn@qqbbur6uiuxl>
Date: Thu, 18 Sep 2025 15:44:39 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
To: Liu Ying <victor.liu@....com>
Cc: dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        andrzej.hajda@...el.com, neil.armstrong@...aro.org, rfoss@...nel.org,
        Laurent.pinchart@...asonboard.com, jonas@...boo.se,
        jernej.skrabec@...il.com, maarten.lankhorst@...ux.intel.com,
        mripard@...nel.org, tzimmermann@...e.de, airlied@...il.com,
        simona@...ll.ch, qijian.guo@....com
Subject: Re: [PATCH] drm/bridge: waveshare-dsi: Fix bailout for
 devm_drm_bridge_alloc()

On Wed, Aug 06, 2025 at 04:41:21PM +0800, Liu Ying wrote:
> devm_drm_bridge_alloc() returns ERR_PTR on failure instead of a
> NULL pointer, so use IS_ERR() to check the returned pointer and
> turn proper error code on failure by using PTR_ERR().
> 
> Fixes: dbdea37add13 ("drm: bridge: Add waveshare DSI2DPI unit driver")
> Signed-off-by: Liu Ying <victor.liu@....com>
> ---
>  drivers/gpu/drm/bridge/waveshare-dsi.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>


-- 
With best wishes
Dmitry