linux-kernel - Re: [PATCH v2 1/4] drm/msm/dsi: Drop redundant NULL-ifying of clocks on error paths

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Message-ID: <aarbydttw4zexzkorcr4yb4swscw3crn65u6eactutpfgpnt4y@fg4zyd45xwln>
Date: Fri, 14 Feb 2025 17:22:24 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc: Rob Clark <robdclark@...il.com>, 
	Abhinav Kumar <quic_abhinavk@...cinc.com>, Sean Paul <sean@...rly.run>, 
	Marijn Suijten <marijn.suijten@...ainline.org>, David Airlie <airlied@...il.com>, 
	Simona Vetter <simona@...ll.ch>, linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org, 
	freedreno@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 1/4] drm/msm/dsi: Drop redundant NULL-ifying of clocks
 on error paths

On Fri, Feb 14, 2025 at 02:17:44PM +0100, Krzysztof Kozlowski wrote:
> dsi_clk_init(), which gets the clocks, is called only through platform
> driver probe and its failure is a failure of the probe.  Therefore
> NULL-ifying specific clocks is pointless and redundant - the PTR_ERR
> value stored there won't be used/dereferenced afterwards.  What's more,
> variant-specific clock init calls like dsi_clk_init_6g_v2() are not
> doing this cleanup.  Dropping redundant code allows later to make this a
> bit simpler.
> 
> Reviewed-by: Abhinav Kumar <quic_abhinavk@...cinc.com>
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
> ---
>  drivers/gpu/drm/msm/dsi/dsi_host.c | 3 ---
>  1 file changed, 3 deletions(-)
> 

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>

-- 
With best wishes
Dmitry